CN108383174A - The method that produced exhaust-gas efficient removes paranitroanilinum is pre-processed using birch - Google Patents
The method that produced exhaust-gas efficient removes paranitroanilinum is pre-processed using birch Download PDFInfo
- Publication number
- CN108383174A CN108383174A CN201810096880.5A CN201810096880A CN108383174A CN 108383174 A CN108383174 A CN 108383174A CN 201810096880 A CN201810096880 A CN 201810096880A CN 108383174 A CN108383174 A CN 108383174A
- Authority
- CN
- China
- Prior art keywords
- birch
- pretreatment
- reaction
- nitroaniline
- mass fraction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 235000018185 Betula X alpestris Nutrition 0.000 title claims abstract description 28
- 235000018212 Betula X uliginosa Nutrition 0.000 title claims abstract description 28
- 239000002699 waste material Substances 0.000 claims abstract description 21
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 20
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 238000006731 degradation reaction Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 10
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 4
- JLLMDXDAVKMMEG-UHFFFAOYSA-N hydrogen peroxide phosphoric acid Chemical compound OO.OP(O)(O)=O JLLMDXDAVKMMEG-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- TYMLOMAKGOJONV-UHFFFAOYSA-N 4-nitroaniline Chemical compound NC1=CC=C([N+]([O-])=O)C=C1 TYMLOMAKGOJONV-UHFFFAOYSA-N 0.000 abstract description 27
- 239000002912 waste gas Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000004065 wastewater treatment Methods 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000000975 dye Substances 0.000 description 16
- 239000002351 wastewater Substances 0.000 description 12
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 238000004042 decolorization Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- FECNOIODIVNEKI-UHFFFAOYSA-N 2-[(2-aminobenzoyl)amino]benzoic acid Chemical class NC1=CC=CC=C1C(=O)NC1=CC=CC=C1C(O)=O FECNOIODIVNEKI-UHFFFAOYSA-N 0.000 description 1
- CQPFMGBJSMSXLP-ZAGWXBKKSA-M Acid orange 7 Chemical compound OC1=C(C2=CC=CC=C2C=C1)/N=N/C1=CC=C(C=C1)S(=O)(=O)[O-].[Na+] CQPFMGBJSMSXLP-ZAGWXBKKSA-M 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- CQPFMGBJSMSXLP-UHFFFAOYSA-M acid orange 7 Chemical compound [Na+].OC1=CC=C2C=CC=CC2=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 CQPFMGBJSMSXLP-UHFFFAOYSA-M 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007071 enzymatic hydrolysis Effects 0.000 description 1
- 238000006047 enzymatic hydrolysis reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 1
- 229940012189 methyl orange Drugs 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- VBEGHXKAFSLLGE-UHFFFAOYSA-N n-phenylnitramide Chemical compound [O-][N+](=O)NC1=CC=CC=C1 VBEGHXKAFSLLGE-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- AMMWFYKTZVIRFN-UHFFFAOYSA-N sodium 3-hydroxy-4-[(1-hydroxynaphthalen-2-yl)diazenyl]-7-nitronaphthalene-1-sulfonic acid Chemical compound [Na+].C1=CC=CC2=C(O)C(N=NC3=C4C=CC(=CC4=C(C=C3O)S(O)(=O)=O)[N+]([O-])=O)=CC=C21 AMMWFYKTZVIRFN-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
本发明提供了一种利用桦木预处理所产废气高效去除对硝基苯胺的方法，其包括如下步骤：收集桦木预处理所产废气，通入装有对硝基苯胺废液中的密闭容器中，于30～80℃中进行降解反应；所述桦木预处理的方法为：将桦木放入反应釜中，加入浓磷酸‑过氧化氢混合试剂进行预处理反应，其中，浓磷酸的质量分数为60.0～70.0％，过氧化氢的质量分数为5.0～8.0％。本发明对于常见的对硝基苯胺具有优秀的去除效果，避免了现有固基和液基处理技术需要对原料进行特殊改性处理的弊端，真正意义上实现了“以废直接治废”的技术目的，实现了生物乙醇制备和废水处理两个产业的有机结合。The invention provides a method for efficiently removing p-nitroaniline by using the waste gas produced by birch pretreatment, which comprises the following steps: collecting the waste gas produced by birch pretreatment and feeding it into a closed container containing p-nitroaniline waste liquid , carry out degradation reaction in 30～80 ℃; The method of described birch pretreatment is: put birch in reaction kettle, add concentrated phosphoric acid-hydrogen peroxide mixed reagent to carry out pretreatment reaction, wherein, the mass fraction of concentrated phosphoric acid is 60.0-70.0%, and the mass fraction of hydrogen peroxide is 5.0-8.0%. The invention has an excellent removal effect on common p-nitroaniline, avoids the drawbacks of the existing solid-based and liquid-based treatment technologies that require special modification of raw materials, and truly realizes the goal of "directly treating waste with waste" The technical purpose realizes the organic combination of the two industries of bioethanol preparation and wastewater treatment.
Description
技术领域technical field
本发明属于废水处理技术领域，具体涉及一种利用桦木预处理所产废气高效去除对硝基苯胺的方法。The invention belongs to the technical field of wastewater treatment, and in particular relates to a method for efficiently removing p-nitroaniline by using waste gas produced by birch pretreatment.
背景技术Background technique
我国是传统纺织大国，近些年，随着对经济结构转型要求的提出，纺织物生产废弃物处理技术的改进将会越来越受到重视。染料，是纺织物生产过程中主要的污染物之一，其成分复杂，多具有生物毒性和难降解性，是较难处理的一类废水。my country is a traditional textile country. In recent years, with the request for economic structural transformation, the improvement of textile production waste treatment technology will receive more and more attention. Dyestuff is one of the main pollutants in the textile production process. Its composition is complex, and most of them are biologically toxic and refractory. It is a kind of wastewater that is difficult to treat.
现阶段，对污染的处理的传统方法为吸附法、膜分离法、臭氧氧化法和光催化法。At present, the traditional methods of pollution treatment are adsorption, membrane separation, ozone oxidation and photocatalysis.
授权公告号为CN 102659235 B的中国专利提供了一种染料废水的处理方法，通过多相Fenton催化氧化的方式，解决了普通均相Fenton氧化的不足，大为提升了对于有机废水处理的效率。The Chinese patent with the authorized notification number CN 102659235 B provides a treatment method for dye wastewater. Through the method of heterogeneous Fenton catalytic oxidation, it solves the shortcomings of ordinary homogeneous Fenton oxidation and greatly improves the efficiency of organic wastewater treatment.
授权公告号为CN 103588307 B的中国专利提供了一种处理染料废水的方法，利用微生物电化学耦合系统，实现了对染料废水的降解效率的提升，其对酸性橙7和甲基橙的去除效率分别达到79％和89.8％。The Chinese patent with the authorized announcement number CN 103588307 B provides a method for treating dye wastewater. The microbial electrochemical coupling system is used to improve the degradation efficiency of dye wastewater. Its removal efficiency for acid orange 7 and methyl orange They reached 79% and 89.8%, respectively.
授权公告号为CN 104725897 B的中国专利提供了一种染料或染料中间体的生态环保处理方法，通过对偶氮染料或者芳香胺染料中加入水、碱剂和有机溶剂，加温反应后，可获得较高的去除效果。The Chinese patent whose authorized announcement number is CN 104725897 B provides an eco-friendly treatment method for dyes or dye intermediates, by adding water, alkali agent and organic solvent to azo dyes or aromatic amine dyes, and after heating and reacting, it can be obtained High removal effect.
授权公告号为CN 103739035 B的中国专利提供了一种染料废水的微波快速处理方法，利用纳米零价铁结合微波处理的技术，实现了对染料的降解处理效率的提升。The Chinese patent with the authorized announcement number CN 103739035 B provides a rapid microwave treatment method for dye wastewater, using nano-zero-valent iron combined with microwave treatment technology to improve the efficiency of dye degradation treatment.
授权公告号为CN 104310559 B的中国提供了一种利用改性秸秆处理染料废水的方法，其利用改性秸秆对染料的吸附，实现了对橙黄II、铬黑T染料废水脱色率达到95％以上，对对硝基苯胺染料废水脱色率达到75％以上的去除效果。China, whose authorized announcement number is CN 104310559 B, provides a method for treating dye wastewater by using modified straw, which utilizes the adsorption of dye by modified straw to achieve a decolorization rate of more than 95% for orange II and chrome black T dye wastewater , The decolorization rate of p-nitroaniline dye wastewater reaches a removal effect of more than 75%.
通过以上对现有的染料废水的处理技术的举例说明可知，目前对于染料废水的处理，通常基于固体吸附剂或者液体反应试剂进行。虽然，现有技术实现了一定程度上的“以废治废”，通过对一些工农业生产废弃物进行改性处理，可以获得清除染料的产品，但是这些改性处理的成本通常较高，推广应用的价值较低。因此，开发一种以现行生产活动产生的直接废物进行“以废直接治废”来处理染料，是下一阶段重点研究的课题。It can be known from the above examples of the existing dye wastewater treatment technologies that the current treatment of dye wastewater is usually based on solid adsorbents or liquid reaction reagents. Although the existing technology has achieved a certain degree of "using waste to treat waste", by modifying some industrial and agricultural production wastes, it is possible to obtain products that remove dyes, but the cost of these modifications is usually high, and promotion The applied value is lower. Therefore, it is a key research topic in the next stage to develop a kind of direct waste generated by current production activities to treat dyes by "directly treating waste with waste".
发明内容Contents of the invention
针对现有技术的缺点，本发明的目的在于提供一种利用桦木预处理所产废气高效去除对硝基苯胺的方法，所述方法包括如下步骤：For the shortcoming of prior art, the object of the present invention is to provide a kind of method that utilizes the waste gas that birch pretreatment produces to efficiently remove p-nitroaniline, described method comprises the steps:
收集桦木预处理所产废气，通入装有对硝基苯胺废液中的密闭容器中，于30～80℃中进行降解反应；Collect the waste gas produced by birch pretreatment, pass it into a closed container filled with p-nitroaniline waste liquid, and carry out the degradation reaction at 30-80°C;
所述桦木预处理的方法为：The method of described birch pretreatment is:
将桦木放入反应釜中，加入浓磷酸-过氧化氢混合试剂进行预处理反应，其中，浓磷酸的质量分数为60.0～75.0％，过氧化氢的质量分数为3.6～8.0％。The birch wood is put into a reaction kettle, and a concentrated phosphoric acid-hydrogen peroxide mixed reagent is added to carry out a pretreatment reaction, wherein the mass fraction of the concentrated phosphoric acid is 60.0-75.0%, and the mass fraction of the hydrogen peroxide is 3.6-8.0%.
本发明的发明人在授权号为CN 103555774 B中进行了利用浓磷酸联合过氧化氢预处理木质纤维素类原料用于酶水解的研究，并取得了优秀的技术效果。令发明人惊喜的是，当发明人利用该专利中的方法，以桦木为原料进行所述预处理过程中产生的废气通入含有对硝基苯胺的废水时，发现废水中对硝基苯胺发生快速降解。The inventors of the present invention have carried out the research on using concentrated phosphoric acid combined with hydrogen peroxide to pretreat lignocellulosic raw materials for enzymatic hydrolysis in the authorization number CN 103555774 B, and achieved excellent technical effects. To the inventor's surprise, when the inventor utilized the method in this patent to use birch as raw material to carry out the waste gas generated in the pretreatment process into the waste water containing p-nitroaniline, it was found that p-nitroaniline in the waste water produced Rapidly degrades.
进一步的，发明人对对硝基苯胺的降解程度进行了测试，发现对硝基苯胺的去除效率竟然达到了100％。也就是说，本发明对于对硝基苯胺的去除效果优于现有的一般的固基和液基材料。本领域人员可知，本发明无疑是开辟了一种新型的废水中对硝基苯胺的处理方式。Further, the inventor tested the degradation degree of p-nitroaniline, and found that the removal efficiency of p-nitroaniline unexpectedly reached 100%. That is to say, the removal effect of the present invention for p-nitroaniline is better than the existing general solid-based and liquid-based materials. Those skilled in the art know that the present invention undoubtedly opens up a novel treatment method for p-nitroaniline in waste water.
CN 103555774 B中虽然显著的提升了糖转化率，为生物乙醇行业做出了重要的贡献。然而，该技术在实际应用时，不可避免的产生一些废气，造成一定程度上的污染。因此，本发明的意义还在于，解决了CN 103555774 B中的废气的回收利用问题。Although CN 103555774 B has significantly improved the sugar conversion rate, it has made important contributions to the bioethanol industry. However, when this technology is applied in practice, some waste gas will inevitably be generated, causing pollution to a certain extent. Therefore, the significance of the present invention is also to solve the problem of recycling waste gas in CN 103555774 B.
目前，本发明的发明人仍然在对其中的气体成分进行测试，并探究其中的污染物去除机理，同时还进行相应的规模化应用改进。At present, the inventors of the present invention are still testing the gas components therein, exploring the pollutant removal mechanism therein, and at the same time making corresponding improvements in large-scale applications.
所述桦木与对硝基苯胺废液的重量体积比为1:0.5～2。如无特别说明，本发明中所指的重量体积比为g/mL，或kg/L。The weight-to-volume ratio of birch and p-nitroaniline waste liquid is 1:0.5-2. Unless otherwise specified, the weight-to-volume ratio referred to in the present invention is g/mL, or kg/L.
作为本发明的一个优选方案，所述桦木与对硝基苯胺废液的重量体积比为8:7.5。As a preferred solution of the present invention, the weight-to-volume ratio of the birch and p-nitroaniline waste liquid is 8:7.5.
作为本发明的一个优选方案，浓磷酸的质量分数为60.0％，过氧化氢的质量分数为8.8％。As a preferred version of the present invention, the mass fraction of concentrated phosphoric acid is 60.0%, and the mass fraction of hydrogen peroxide is 8.8%.
作为本发明的优选方案，进行所述降解反应时，反应温度为50～80℃。As a preferred solution of the present invention, when performing the degradation reaction, the reaction temperature is 50-80°C.
如本发明的一个实施例所示，当预处理反应时间为1h时，对硝基苯胺的去除效率出现了较为显著的下降，仅为91.0％。不过，需要指出的是，91.0％的去除率仅仅是相对于在预处理反应时间为4h时所能达到95.7％以上的去除率而言，是比较低的，但相对于其它的废水处理技术，该去除率是比较优秀的。As shown in an example of the present invention, when the pretreatment reaction time is 1 h, the removal efficiency of p-nitroaniline is significantly reduced, only 91.0%. However, it should be pointed out that the removal rate of 91.0% is relatively low compared to the removal rate above 95.7% when the pretreatment reaction time is 4 hours, but compared to other wastewater treatment technologies, The removal rate is relatively excellent.
另外，当预处理时间缩短时，对硝基苯胺的去除率也出现较大幅度的下降。In addition, when the pretreatment time was shortened, the removal rate of p-nitroaniline also dropped significantly.
作为本发明的一个优选方案，进行所述降解反应时，反应温度为50℃。因在50℃下，污染物的去除率已经非常优秀，从节约反应成本的角度而言，在该温度下进行污染物的去除处理是比较经济的。As a preferred solution of the present invention, when performing the degradation reaction, the reaction temperature is 50°C. Because the removal rate of pollutants is already very good at 50°C, from the perspective of saving reaction costs, it is more economical to remove pollutants at this temperature.
所述降解反应是与所述预处理同步进行，预处理所产生的废气同步的通入所述密闭容器中进行降解反应，也就是说预处理时间即为降解反应时间。The degradation reaction is carried out synchronously with the pretreatment, and the waste gas generated by the pretreatment is synchronously passed into the airtight container to carry out the degradation reaction, that is to say, the pretreatment time is the degradation reaction time.
一般而言，进行桦木预处理时，所述预处理反应的时间为1～5h。Generally speaking, when performing birch pretreatment, the time for the pretreatment reaction is 1 to 5 hours.
作为本发明的一个优选方案，进行桦木预处理时，所述预处理反应的时间为4h。As a preferred version of the present invention, when carrying out birch pretreatment, the time of the pretreatment reaction is 4h.
本发明的有益效果：Beneficial effects of the present invention:
本发明对于常见的对硝基苯胺具有优秀的去除效果，避免了现有固基和液基处理技术需要对原料进行特殊改性处理的弊端，真正意义上实现了“以废直接治废”的技术目的，实现了生物乙醇制备和废水处理两个产业的有机结合。The invention has an excellent removal effect on common p-nitroaniline, avoids the drawbacks of the existing solid-based and liquid-based treatment technologies that require special modification of raw materials, and truly realizes the goal of "directly treating waste with waste" The technical purpose realizes the organic combination of the two industries of bioethanol preparation and wastewater treatment.
具体实施方式Detailed ways
下面通过实施例对本发明进行具体描述，有必要在此指出的是以下实施例只是用于对本发明进行进一步的说明，不能理解为对本发明保护范围的限制，该领域的技术熟练人员根据上述发明内容所做出的一些非本质的改进和调整，仍属于本发明的保护范围。The present invention is described in detail by the following examples, it is necessary to point out that the following examples are only used to further illustrate the present invention, and can not be interpreted as limiting the scope of the present invention, those skilled in the art according to the content of the above invention Some non-essential improvements and adjustments still belong to the protection scope of the present invention.
实施例1Example 1
将桦木粉碎过40目筛，得到桦木粉末；将8g桦木粉末放入反应釜，按固液比为1:10的比例，向反应釜中加入磷酸与过氧化氢混合液80g，其中浓磷酸的质量分数为60.0％，过氧化氢的质量分数为8.8％，预处理的温度为50℃，预处理时间为4h；收集预处理时产生的气体；并同步将所得气体通入装有7.5ml对硝基苯胺废液(100ppm)中的密闭容器(50ml规格)中，于50℃中进行降解反应。The birch is crushed through a 40-mesh sieve to obtain the birch powder; 8g of the birch powder is put into the reactor, and the solid-to-liquid ratio is 1:10, and 80g of phosphoric acid and hydrogen peroxide mixed solution are added to the reactor, wherein concentrated phosphoric acid The mass fraction is 60.0%, the mass fraction of hydrogen peroxide is 8.8%, the temperature of pretreatment is 50 ℃, and the pretreatment time is 4h; Collect the gas produced during pretreatment; The degradation reaction was carried out at 50° C. in a closed container (50 ml size) in nitroaniline waste liquid (100 ppm).
实施例2Example 2
调整浓磷酸的质量分数为75.0％，过氧化氢的质量分数为3.6％，其余保持与实施例1一致。对对硝基苯胺的去除率仍均达到95.7％。Adjust the mass fraction of concentrated phosphoric acid to be 75.0%, the mass fraction of hydrogen peroxide to be 3.6%, and the rest remain consistent with Example 1. The removal rate of p-nitroaniline still reached 95.7%.
实施例3Example 3
调整桦木粉末的重量为10g，对硝基苯胺废液的体积为5ml，其余保持与实施例1一致。对对硝基苯胺的去除率仍均达到95％以上。Adjust the weight of the birch powder to be 10g, the volume of p-nitroaniline waste liquid to be 5ml, and the rest remain consistent with Example 1. The removal rate of p-nitroaniline still all reaches more than 95%.
实施例4Example 4
调整桦木粉末的重量为4g，对硝基苯胺废液的体积为8ml，其余保持与实施例1一致。对对硝基苯胺的去除率仍均达到95％以上。Adjust the weight of the birch powder to be 4g, the volume of p-nitroaniline waste liquid to be 8ml, and the rest remain consistent with Example 1. The removal rate of p-nitroaniline still all reaches more than 95%.
实施例5Example 5
调整预处理时间为1h，调整浓磷酸的质量分数为65.0％，过氧化氢的质量分数为7.0％，其余保持与实施例1一致。对硝基苯胺的去除率为98.9％。Adjust the pretreatment time to 1 h, adjust the mass fraction of concentrated phosphoric acid to 65.0%, and the mass fraction of hydrogen peroxide to 7.0%, and keep the rest consistent with Example 1. The removal rate of p-nitroaniline is 98.9%.
实施例6Example 6
调整降解反应时的温度为30℃，其余保持与实施例5一致。对硝基苯胺的去除率为90.3％。The temperature during the degradation reaction was adjusted to be 30° C., and the rest remained consistent with Example 5. The removal rate of p-nitroaniline is 90.3%.
实施例7Example 7
调整预处理时间为3h，其余保持与实施例1一致。对硝基苯胺的去除率为96.4％。Adjust the pretreatment time to be 3h, and the rest remain consistent with Example 1. The removal rate of p-nitroaniline is 96.4%.
实施例8Example 8
调整预处理时间为5h，其余保持与实施例1一致。对硝基苯胺的去除率为99.7％。Adjust the pretreatment time to be 5h, and the rest remain consistent with Example 1. The removal rate of p-nitroaniline is 99.7%.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810096880.5A CN108383174B (en) | 2018-01-31 | 2018-01-31 | Method for efficiently removing p-nitroaniline by utilizing waste gas produced by birch pretreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810096880.5A CN108383174B (en) | 2018-01-31 | 2018-01-31 | Method for efficiently removing p-nitroaniline by utilizing waste gas produced by birch pretreatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108383174A true CN108383174A (en) | 2018-08-10 |
| CN108383174B CN108383174B (en) | 2020-05-26 |
Family
ID=63074230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810096880.5A Active CN108383174B (en) | 2018-01-31 | 2018-01-31 | Method for efficiently removing p-nitroaniline by utilizing waste gas produced by birch pretreatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108383174B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459324A (en) * | 2002-05-25 | 2003-12-03 | 优尼森有限公司 | Device and method for pretreating waste gas under moisture environment |
| CN101244878A (en) * | 2008-02-25 | 2008-08-20 | 南京大学 | A method for the treatment and resource recovery of p-nitroaniline production wastewater |
| CN101288846A (en) * | 2008-05-09 | 2008-10-22 | 淮阴工学院 | Microbial pretreatment method for producing rice husk ash adsorbent |
| CN107200384A (en) * | 2017-07-13 | 2017-09-26 | 陕西科技大学 | A kind of carbon fiber electrode preparation method of efficient production hydrogen peroxide treatment organic wastewater |
-
2018
- 2018-01-31 CN CN201810096880.5A patent/CN108383174B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459324A (en) * | 2002-05-25 | 2003-12-03 | 优尼森有限公司 | Device and method for pretreating waste gas under moisture environment |
| CN101244878A (en) * | 2008-02-25 | 2008-08-20 | 南京大学 | A method for the treatment and resource recovery of p-nitroaniline production wastewater |
| CN101288846A (en) * | 2008-05-09 | 2008-10-22 | 淮阴工学院 | Microbial pretreatment method for producing rice husk ash adsorbent |
| CN107200384A (en) * | 2017-07-13 | 2017-09-26 | 陕西科技大学 | A kind of carbon fiber electrode preparation method of efficient production hydrogen peroxide treatment organic wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108383174B (en) | 2020-05-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103088070B (en) | Method for producing biogas by combined solid state fermentation of crop straws and excrements of livestocks | |
| Yao et al. | Treatment of water hyacinth anaerobic fermentation wastewater by combining Fe-C micro-electrolysis with Fenton reaction | |
| CN204752450U (en) | A gentle catalytic oxidation device for waste water treatment | |
| CN106824253A (en) | A kind of support type ozone catalyst and preparation and application for dyeing waste water biochemistry pre-treatment | |
| CN108751162A (en) | A kind of carbonizing treatment method of antibiotic bacterium dregs | |
| CN102583917B (en) | Municipal sludge pretreatment method enhancing sludge anaerobic fermentation acid production | |
| CN102059100B (en) | Method for preparing magnetic saccharomyces cerevisiae and technique for processing printing and dying wastewater by using same | |
| CN103623805B (en) | Activated carbon fiber-loaded composite oxide based on NaBiO3 and its preparation method and method for using it to degrade organic dye wastewater | |
| KR20140015102A (en) | System for producing biogas using substitution reaction in pretreatment process of anaerobic fermentation to improve biogas production from organic wastes, production method thereof and biogas produced by the method | |
| CN102775026A (en) | Method for treating biogas slurry by using modified fly ash | |
| CN108383174A (en) | The method that produced exhaust-gas efficient removes paranitroanilinum is pre-processed using birch | |
| CN104529114B (en) | A kind of ultrasonic wave and photosynthetic bacteria are combined the method that promotes excess sludge digestion | |
| CN117566845A (en) | A method for treating organic waste liquid | |
| CN108408865A (en) | The method for removing methylene blue using the produced exhaust-gas efficient of stalk pretreatment | |
| CN102219324A (en) | Method for processing acrylonitrile waste water with high concentration by nanofiltration membrane | |
| CN108298661A (en) | The method that produced exhaust-gas efficient removes methylene blue is pre-processed using jerusalem artichoke core | |
| CN102616924B (en) | Method for increasing biochemical treatment ability of printing and dyeing wastewater by utilizing enzyme activity soybean meal | |
| CN108298663A (en) | The method that produced exhaust-gas efficient removes methylene blue is pre-processed using maize straw | |
| CN108298662A (en) | The method that produced exhaust-gas efficient removes water pollutant is pre-processed using corncob | |
| CN104651341A (en) | Method for performing bio-enzyme immobilization through rice bran | |
| CN107010749B (en) | Device and multistage combined process for removing total organic carbon in coking nanofiltration concentrated water | |
| CN106045004A (en) | Process for catalytic degradation of chlorine bleaching effluent through laccase-M (salen) one-pot method | |
| CN108341438A (en) | A kind of efficient method for removing Recalcitrant chemicals in water body | |
| CN108178273A (en) | Utilize the method for Recalcitrant chemicals in bamboo scraps pretreatment exhaust gas removal water body | |
| CN108408919A (en) | Method based on Recalcitrant chemicals in rape stalk pretreatment exhaust gas removal water body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |