CN105060374B - The processing method of power plant cycle sewage - Google Patents
The processing method of power plant cycle sewage Download PDFInfo
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- CN105060374B CN105060374B CN201510627405.2A CN201510627405A CN105060374B CN 105060374 B CN105060374 B CN 105060374B CN 201510627405 A CN201510627405 A CN 201510627405A CN 105060374 B CN105060374 B CN 105060374B
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Abstract
The invention discloses a kind of processing method of power plant cycle sewage, comprise the steps：(1) power plant cycle sewage-treating agent is prepared：20 40 parts by weight hydroxyapatites, 75 85 parts by weight zeolites, 70 90 parts by weight of bentonite are mixed, 250 350 DEG C of 40min of activation process 20, ultra-fine grinding to particle diameter is 0.01 10 μm, then is mixed with coagulant, and the power plant cycle sewage-treating agent is made；(2) power plant cycle sewage-treating agent is added in power plant cycle sewage, power plant cycle sewage-treating agent is 0.01 0.2g/L with the ratio of power plant cycle sewage quantity；(3) stir, settle, filtering.The processing method of the power plant cycle sewage of the present invention, it is easy to operate, it is high to power plant cycle sewage treating efficiency.
Description
Technical field
The present invention relates to a kind of processing method of sewage, and in particular to a kind of processing method of power plant cycle sewage.
Background technology
With the progress of the mankind and the development of industrial and agricultural production, people gradually recognize, water is not inexhaustible to use it
Inexhaustible resource, but a kind of not only extremely valuable natural resources with economic value but also with restoring ecological environment, are people
The narrow resources that class society is faced with.Water resource total content deficiency, it is one of China's water resource important that spatial distribution is uneven
Feature.According to incompletely statistics, at present, there is more than 100 national water shortage in the whole world, and the country of wherein serious water shortage has reached four
More than ten.The per capita water resource in China just corresponds to the 1/4 of world average level.Particularly in recent years, produce and live and use
Water requirement constantly increases, and becomes increasingly conspicuous the problem of water resource deficiency.At the same time, China also faces asking for water pollution
Topic, exacerbates the shortage of water resource, annoyings national economy, and oneself turns into the main of restriction Sustainable Socioeconomic Development
Factor.Therefore, it is the final method for solving water resource deficiency to purify surface water and administer contaminated wastewater.
Sewage, it is often referred to discharge water necessarily polluted, from life and production.Sewage mainly has sanitary sewage, work
Industry waste water and early-stage rainwater.The ill pathogen contaminant of major pollutants, oxygen consumption pollutant, plant nutrient and the poisonous dirt of sewage
Contaminate thing etc..With the continuous development of the modernization of industry, the industrial wastewater of discharge is also more and more, the life to environment and the mankind
Very big influence is brought, if waste water is handled not in time, not only directly affects air quality, the quality of drinking water, but also
The physical and mental health of the mankind can be being influenceed indirectly.
Existing industry, municipal wastewater processing method have physical treatment process, method of chemical treatment and biological treatment.At physics
Logos is simplest water treating method, and it acts on the undissolved suspended contaminant in recovery sewage, physics by physical separation
Facture can only handle some simple wastewater treatments, but handle very incomplete, it is difficult to reach discharge standard；Chemical treatment method
It is to use chemicals treatment pollutant, including neutralization, flocculation, redox etc.；Biological treatment is made by microbial metabolism
Pollutant dissolving in sewage, but this method investment is big, and operating cost is high.
In the processing with waste water of feeding water, coagulation is processing method conventional both at home and abroad.Precipitation process of coagulation is to be used to go
Except colloid and the basic operation unit of natural organic matter.Innovation and development chemical coagulation, simplify water treatment technological process, reduce operation
The coagulation performance for being critically depend on used coagulant of expense and depuration quality of increasing water quality, the quality of coagulant performance is directly
Have influence on the quality of water process final effect.So it is water process environmental protection to research and develop water treatment agent that new height laughs at and material
One of direction given priority in industrial technology field, it is the basis of Water Pollution Control Engineering innovation and development.Coagulant mainly divides
For compound (compounding) coagulant of inorganic coagulant, organic coagulants, microorganism coagulant and new development.Due to inorganic coagulation
There is nontoxic (micro- poison), inexpensive, raw material many advantages such as to be readily obtained for agent, be occupied in coagulation water technology very heavy
The status wanted, is widely used by people always.Compared with inorganic coagulant, organic coagulants have that dosage is few, coagulation speed is fast,
Small, processing time is short is influenceed by salt and environment temperature factor coexists, generates the advantages that sludge quantity is few.
The sewage in thermal power plant mainly includes：Industrial wastewater, ash flushing water and sanitary sewage.1. industrial wastewater：Industry Waste
Water is the general name of industrial total draining, including industrial colling draining, chemical water treatment system acid-alkali regeneration waste water, filter backwash
Waste water, cleaning boiler waste water, defeated coal rinses and dust waste water, oily waste water, cooling tower blowdown water etc..2. ash flushing water：Punching ash
Water is primarily referred to as the water for rinsing clinker and remover ash discharge dust, is typically discharged after grey field settles.3. sanitary sewage：Life is dirty
Water refers to the sewage that power plant resident is discharged.Waste water of heat-engine plant is administered and generally can be divided into two major classes：When power plant's whole waste water by
The qualitative classification of its contained pollutant focuses on, and then drains into water and stops；Second, with scattered processing waste water mode, then drain into
Sewer or grey field.The purpose of waste water of heat-engine plant reuse is exactly to be returned according to the species of different waste water, feature and different production workshop sections
Quality of water and water requirement, using various water technologies and measure by its separated from contaminants, conversion and decomposition.
The content of the invention
For above shortcomings in the prior art, the technical problems to be solved by the invention are to provide a kind of power plant and followed
The processing method of environmental pollution water.
The present invention seeks to what is be achieved through the following technical solutions：
The processing method of power plant cycle sewage, comprises the steps：
(1) power plant cycle sewage-treating agent is prepared：By 20-40 parts by weight hydroxyapatite, 75-85 parts by weight zeolite, 70-
90 parts by weight of bentonite mix, 250-350 DEG C of activation process 20-40min, and ultra-fine grinding to particle diameter is 0.01-10 μm, then with mixing
Solidifying agent mixing, is made the power plant cycle sewage-treating agent；
(2) by power plant cycle sewage-treating agent add power plant cycle sewage in, power plant cycle sewage-treating agent and power plant
The ratio of circulating sewage amount is 0.01-0.2g/L；
(3) stir, settle, filtering.
Preferably, described coagulant is mixed by lignin, aluminium polychloride and sodium p styrene sulfonate, the wood
Quality, aluminium polychloride, the mass ratio of sodium p styrene sulfonate are (1-3)：(1-3)：(1-3).
Specifically, in the present invention：
Hydroxyapatite, No. CAS：1306-06-5.
Zeolite, No. CAS：1318-02-1.
Bentonite, No. CAS：1302-78-9.
Lignin, No. CAS：9005-53-2.
Aluminium polychloride, No. CAS：1327-41-9.
Sodium p styrene sulfonate, No. CAS：2695-37-6.
The processing method of the power plant cycle sewage of the present invention, it is easy to operate, it is high to power plant cycle sewage treating efficiency.
Embodiment
Embodiment 1
The processing method of power plant cycle sewage, comprises the steps：
(1) power plant cycle sewage-treating agent is prepared：By 30 parts by weight hydroxyapatites, 80 parts by weight zeolites, 85 parts by weight
Bentonite mixes, 300 DEG C of activation process 30min, and ultra-fine grinding to particle diameter is 0.1 μm, then is mixed with coagulant, and the electricity is made
Factory's circulating sewage inorganic agent；
(2) by power plant cycle sewage-treating agent add power plant cycle sewage in, power plant cycle sewage-treating agent and power plant
The ratio of circulating sewage amount is 0.1g/L, i.e. 0.1g power plant cycle sewage-treating agents are added in 1 liter of power plant cycle sewage；
(3) constant temperature stirs, speed of agitator 140r/min, 28 DEG C of whipping temp, settles 0.45 μm of membrane filtration after 30min.
Coagulant is mixed by lignin, aluminium polychloride and sodium p styrene sulfonate described in step (1), the wood
Quality, aluminium polychloride, the mass ratio of sodium p styrene sulfonate are 1：1：1.
Embodiment 2
It is substantially the same manner as Example 1, differ only in：Coagulant is replaced with into lignin, aluminium polychloride mass ratio is
1：1 mixture.
Embodiment 3
It is substantially the same manner as Example 1, differ only in：Coagulant is replaced with into lignin, sodium p styrene sulfonate quality
Than for 1：1 mixture.
Embodiment 4
It is substantially the same manner as Example 1, differ only in：Coagulant is replaced with into aluminium polychloride, sodium p styrene sulfonate
Mass ratio is 1：1 mixture.
Test case 1
Water to power plant cycle sewage and after embodiment 1-4 processing is tested, and data are shown in Table 1.
Table 1：Water-quality test table
| COD, mg/L | Turbidity, NTU | |
| Raw water | 59 | 25 |
| Embodiment 1 | 24 | 7 |
| Embodiment 2 | 29 | 11 |
| Embodiment 3 | 31 | 10 |
| Embodiment 4 | 30 | 12 |
By the test result of table 1, embodiment 1 has used the mixed of lignin, aluminium polychloride and sodium p styrene sulfonate compounding
Solidifying agent, compared with embodiment 2-4 omits any of which, in the case of coagulant adds total amount identical, embodiment 1 is to electricity
Effect after factory's circulating sewage processing is more excellent.
Claims (1)
1. the processing method of power plant cycle sewage, it is characterised in that comprise the steps：
(1) power plant cycle sewage-treating agent is prepared：By 20-40 parts by weight hydroxyapatite, 75-85 parts by weight zeolite, 70-90 weights
Measure part bentonite to mix, 250-350 DEG C of activation process 20-40min, ultra-fine grinding to particle diameter is 0.01-10 μm, then with coagulant
Mixing, the power plant cycle sewage-treating agent is made；
(2) by power plant cycle sewage-treating agent add power plant cycle sewage in, power plant cycle sewage-treating agent and power plant cycle
The ratio of sewage quantity is 0.01-0.2g/L；
(3) stir, settle, filtering；
Described coagulant is mixed by lignin, aluminium polychloride and sodium p styrene sulfonate, the lignin, polymerization chlorine
Change aluminium, the mass ratio of sodium p styrene sulfonate is (1-3)：(1-3)：(1-3).
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| CN201510627405.2A CN105060374B (en) | 2015-09-28 | 2015-09-28 | The processing method of power plant cycle sewage |
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| CN201510627405.2A CN105060374B (en) | 2015-09-28 | 2015-09-28 | The processing method of power plant cycle sewage |
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| CN105060374B true CN105060374B (en) | 2018-01-23 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105461036A (en) * | 2015-12-04 | 2016-04-06 | 佛山市中科院环境与安全检测认证中心有限公司 | Water treatment flocculant |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0056926A1 (en) * | 1981-01-19 | 1982-08-04 | Michael Fehle | Waste water recycling and treatment by adsorption of non-biodegradable substances such as humic and sulfonic acids, melanoidine and chlorinated organics on lignite coke, in all kinds of solid-liquid reactors |
| CN1587082A (en) * | 2004-09-30 | 2005-03-02 | 北京工业大学 | Composite natural micro porous material sewage treating agent |
| JP5298612B2 (en) * | 2008-04-15 | 2013-09-25 | 東ソー株式会社 | Heavy metal treating agent and method for treating heavy metal contaminants using the same |
| CN102658082B (en) * | 2012-04-25 | 2013-10-02 | 武汉理工大学 | Inorganic composite material for absorbent refining multiple metal ion industrial sewage and application method thereof |
| CN103055804B (en) * | 2013-01-17 | 2015-02-04 | 河海大学 | Compound water treatment agent as well as preparation method and application thereof |
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Effective date of registration: 20191029 Address after: Room 1210, 12th floor, building B, Sanbao industrial building, No.601, hanghai Road, Jianggan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou leading energy saving Technology Co., Ltd. Address before: 315040 411-45-4 room 4, building 599, Jiangnan Road, hi tech Zone, Zhejiang, Ningbo, 2 Patentee before: NINGBO HI-TECH ZONE BAYI NEW MATERIAL TECHNOLOGY CO., LTD. |