CN106045154A - Process for treating wastewater generated after saline-alkali soil improvement - Google Patents
Process for treating wastewater generated after saline-alkali soil improvement Download PDFInfo
- Publication number
- CN106045154A CN106045154A CN201610547425.3A CN201610547425A CN106045154A CN 106045154 A CN106045154 A CN 106045154A CN 201610547425 A CN201610547425 A CN 201610547425A CN 106045154 A CN106045154 A CN 106045154A
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- Prior art keywords
- water
- waste water
- filter
- improvement
- process technique
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/003—Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a process for treating wastewater generated after saline-alkali soil improvement. The process comprises the steps of collection, sedimentation, regulation, filtration, desalination and detection. According to the process, water resources are recycled, the environment is protected, new water is saved by almost 20,000 tons every year, and cost is saved; a device has a multistage filtering function, water quality judgment is conducted before a concentrated water collection box, and the environment can be effectively protected; furthermore, resource recovery can be achieved, distribution and recovery efficiency is high, purification effect is good, and operation is stable. By the adoption of the process, the content of salt in saline-alkali soil washing water can be effectively reduced and the recovery rate of washing water can be increased on the premise that energy consumption is low.
Description
Technical field
The present invention relates to field of waste water treatment, be specifically related to the process technique of waste water after a kind of alkaline land soil is improved.
Background technology
Saline-alkali soil is the general name of solonchak and alkaline earth.Administer saline-alkali soil at present it is most useful that use the mode pair of washed off soil
Soil carries out salt discharge alkali.Actual wash ground during, a large amount of salt-soda soils wash water often do not add process just directly discharged, high salt is dense
The safety of body of groundwater, public water body in the wash water serious threat of degree, and water resource waste is serious.According to investigation, China is saline and alkaline
Change soil reached hundreds of thousands square kilometre, wherein quite a few is distributed in northwest China, as Xinjiang, the Inner Mongol, Gansu,
Qinghai, Shaanxi etc. save or autonomous region.Salinization of soil problem seriously limits the agricultural development of locality and building of ecological shelter forest
Change, be one of the problem that first must solve in Eco-environment Construction of Western Region.In order to improve the Soil structure of salt affected soil, reduction
The alkalization of soils degree of salt affected soil, total salt amount and pH value, in order to the salt affected soil after improvement can be used in agricultural development and life
The construction of state shelter-forest, arises that substantial amounts of waste water during improvement simultaneously, not only causes waste and portion through processing
The most wantonly discharge, ecological environment had pollution, and the salt-soda soil wash water response rate and desalting effect poor, hyperfiltration normal-temperature operation,
Equipment is simple and convenient to operate and consuming little energy, but the response rate is relatively low, still can not meet the need reclaiming salt-soda soil wash water
Want, to this end, it is proposed that the process technique of waste water after the improvement of a kind of alkaline land soil.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention discloses the process technique of waste water after a kind of alkaline land soil is improved.
The present invention adopts the following technical scheme that for achieving the above object
The present invention proposes the process technique of waste water after a kind of alkaline land soil is improved, and comprises the steps:
The first step, collection, be provided around drainage trough in salt-soda soil, is provided with drainage plate in the bottom of drainage trough, is drawing simultaneously
The outlet of chute is provided with filter screen isolates big float, collects pending waste water and guides cistern into；
Second step, sedimentation, the water inlet at cistern is provided with grid fie screen and tiny float isolation is removed, and
Settle 3-6h at cistern, the waste water on upper strata is carried out arriving Aeration tank transition, wait that the mud of reprecipitation formation in 20-40 minute is defeated
Deliver to sludge-tank；
3rd step, regulation, transfer to Aeration tank by the waste water after sedimentation, adds regulator and is adjusted, it is ensured that pH value is
6-9, standard compliant defecator of transferring to, non-compliant by water pump, water transferred to cistern and again locate
Reason；
4th step, filtration, transfer to defecator by the waste water after regulation, carries out decolouring, taking off through active carbon filter
Smelly, dechlorination link, and organics removal and heavy metal；Then entering back into ultrafilter, ultrafiltration micropore is less than 0.01 micron, filters dirt
In water impurity；Enter accurate filter, filter further, make COD between 35mg/L-40mg/L；
5th step, desalination, the water quality after being filtered by accurate filter carries out resin desalting processing, carries out back with fresh water state
Receive and utilize；
6th step, detection, the water quality after reclaiming detects, and standard compliant utilizes, and non-compliant adopts
Take and the most again regulate.
Preferably, after the water quality transfer after the precipitation of described Aeration tank inner chamber top, then the mud after the sedimentation of bottom is carried out
Priority treatment.
Preferably, it is additionally provided with ultrafiltration between described ultrafilter and accurate filter and produces water tank.
Preferably, described ultrafiltration is produced and is additionally provided with sterilizer between water tank and accurate filter.
Preferably, at least one during described regulator includes ferric chloride, aluminum sulfate, poly-aluminum and polyacrylamide.
Preferably, the float that described drainage trough and cistern leach all is collected unified garbage pool and is carried out specification handles.
Compared with prior art, the invention has the beneficial effects as follows: the process technique of waste water after the improvement of this alkaline land soil, this
The recycling of invention water resource, protects environment, annual nearly 20000 tons of new water consumption of saving, has saved cost；Device has
Multistage filtering function, does water quality before dense water collection tank and judges, effectively can play a protective role environment, and resource is permissible
Recycling, shunting organic efficiency is high, good purification, stable, the process technique of the salt-soda soil waste water that the present invention provides
In the case of power consumption is low, it is possible to effectively reduce the salt content in the wash water of salt-soda soil, improve the salt-soda soil wash water response rate.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.Specific embodiment described herein, only in order to explain the present invention, is not used to limit
The present invention.
Embodiment 1
1, the process technique of waste water after the improvement of a kind of alkaline land soil, it is characterised in that: comprise the steps:
The first step, collection, be provided around drainage trough in salt-soda soil, is provided with drainage plate in the bottom of drainage trough, is drawing simultaneously
The outlet of chute is provided with filter screen isolates big float, collects pending waste water and guides cistern into；
Second step, sedimentation, the water inlet at cistern is provided with grid fie screen and tiny float isolation is removed, and
Settle 3.5h at cistern, the waste water on upper strata is carried out arriving Aeration tank transition, wait the mud conveying that reprecipitation is formed 25 minutes
To sludge-tank；
3rd step, regulation, transfer to Aeration tank by the waste water after sedimentation, adds regulator and is adjusted, it is ensured that pH value is
6, standard compliant defecator of transferring to, non-compliant by water pump, water transferred to cistern and again process；
4th step, filtration, transfer to defecator by the waste water after regulation, carries out decolouring, taking off through active carbon filter
Smelly, dechlorination link, and organics removal and heavy metal；Then entering back into ultrafilter, ultrafiltration micropore is less than 0.01 micron, filters dirt
In water impurity；Enter accurate filter, filter further, make COD at 37mg/L；
5th step, desalination, the water quality after being filtered by accurate filter carries out resin desalting processing, carries out back with fresh water state
Receive and utilize；
6th step, detection, the water quality after reclaiming detects, and standard compliant utilizes, and non-compliant adopts
Take and the most again regulate.
Embodiment 2
After the improvement of a kind of alkaline land soil, the process technique of waste water, comprises the steps:
1, the process technique of waste water after the improvement of a kind of alkaline land soil, it is characterised in that: comprise the steps:
The first step, collection, be provided around drainage trough in salt-soda soil, is provided with drainage plate in the bottom of drainage trough, is drawing simultaneously
The outlet of chute is provided with filter screen isolates big float, collects pending waste water and guides cistern into；
Second step, sedimentation, the water inlet at cistern is provided with grid fie screen and tiny float isolation is removed, and
Settle 4.5h at cistern, the waste water on upper strata is carried out arriving Aeration tank transition, wait the mud conveying that reprecipitation is formed 30 minutes
To sludge-tank；
3rd step, regulation, transfer to Aeration tank by the waste water after sedimentation, adds regulator and is adjusted, it is ensured that pH value is 7
Filter, the waste water after regulation transferred to defecator, carry out decolouring through active carbon filter, deodorize, dechlorination link, and go
Except Organic substance and heavy metal；Then enter back into ultrafilter, ultrafiltration micropore be less than 0.01 micron, filter in sewage impurity；Enter
Enter accurate filter, filter further, make COD between 38mg/L；
5th step, desalination, the water quality after being filtered by accurate filter carries out resin desalting processing, carries out back with fresh water state
Receive and utilize；
6th step, detection, the water quality after reclaiming detects, and standard compliant utilizes, and non-compliant adopts
Take and the most again regulate.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace
And modification, the scope of the present invention be defined by the appended.
Claims (6)
1. the process technique of waste water after an alkaline land soil improvement, it is characterised in that: comprise the steps:
The first step, collection, be provided around drainage trough in salt-soda soil, is provided with drainage plate in the bottom of drainage trough, simultaneously at drainage trough
Outlet be provided with filter screen by big float isolation, collect pending waste water and guide cistern into；
Second step, sedimentation, the water inlet at cistern is provided with grid fie screen and tiny float isolation is removed, and storing
Pond sedimentation 3-6h, carries out the waste water on upper strata to arrive Aeration tank transition, waits that the mud of reprecipitation formation in 20-40 minute is delivered to
Sludge-tank；
3rd step, regulation, transfer to Aeration tank by the waste water after sedimentation, adds regulator and is adjusted, it is ensured that pH value is 6-9,
Standard compliant defecator of transferring to, non-compliant transfer to cistern by water pump by water and again processes；
4th step, filtration, transfer to defecator by the waste water after regulation, carries out decolouring through active carbon filter, deodorize, de-
Chlorine link, and organics removal and heavy metal；Then entering back into ultrafilter, ultrafiltration micropore is less than 0.01 micron, filters in sewage
Impurity；Enter accurate filter, filter further, make COD between 35mg/L-40mg/L；
5th step, desalination, the water quality after being filtered by accurate filter carries out resin desalting processing, carries out reclaiming profit with fresh water state
With；
6th step, detection, the water quality after reclaiming detects, and standard compliant utilizes, and non-compliant takes pin
Property is regulated again.
The process technique of waste water after a kind of alkaline land soil the most according to claim 1 improvement, it is characterised in that: described exposure
After water quality transfer after the precipitation of inner chamber top, gas pond, then the mud after the sedimentation of bottom is carried out priority treatment.
The process technique of waste water after a kind of alkaline land soil the most according to claim 1 improvement, it is characterised in that: described super
It is additionally provided with ultrafiltration between filter and accurate filter and produces water tank.
The process technique of waste water after a kind of alkaline land soil the most according to claim 3 improvement, it is characterised in that: described super
Filter is produced and is additionally provided with sterilizer between water tank and accurate filter.
The process technique of waste water after a kind of alkaline land soil the most according to claim 1 improvement, it is characterised in that: described tune
Joint agent includes at least one in ferric chloride, aluminum sulfate, poly-aluminum and polyacrylamide.
The process technique of waste water after a kind of alkaline land soil the most according to claim 1 improvement, it is characterised in that draw described in:
The float that chute and cistern leach all is collected unified garbage pool and is carried out specification handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610547425.3A CN106045154A (en) | 2016-07-12 | 2016-07-12 | Process for treating wastewater generated after saline-alkali soil improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610547425.3A CN106045154A (en) | 2016-07-12 | 2016-07-12 | Process for treating wastewater generated after saline-alkali soil improvement |
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| Publication Number | Publication Date |
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| CN106045154A true CN106045154A (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610547425.3A Pending CN106045154A (en) | 2016-07-12 | 2016-07-12 | Process for treating wastewater generated after saline-alkali soil improvement |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05317892A (en) * | 1992-05-21 | 1993-12-03 | Mitsuboshi Belting Ltd | Method for removing salts from soil containing salts |
| CN102173531A (en) * | 2011-01-12 | 2011-09-07 | 北京恒源嘉达科技有限公司 | In-situ processing method of alkaline land washing water |
| CN102295348A (en) * | 2010-12-20 | 2011-12-28 | 北京航空航天大学 | Removing method of salt in recession of saline and alkaline land |
| CN103303988A (en) * | 2013-07-03 | 2013-09-18 | 张维 | Treatment method of saline-alkali soil reformation wastewater |
| CN203794717U (en) * | 2014-04-02 | 2014-08-27 | 杭州中艺园林工程有限公司 | Wash-water recycling device for saline-alkali soil |
| US20140346125A1 (en) * | 2013-03-14 | 2014-11-27 | Robert W. Stiles, Jr. | Desalting Salty Sludge System and Method |
| CN204162531U (en) * | 2014-09-28 | 2015-02-18 | 青岛中亚环保工程有限公司 | A kind of alkaline land improvement system |
| CN105293785A (en) * | 2015-12-04 | 2016-02-03 | 天津海钢板材有限公司 | Sewage recycling device |
-
2016
- 2016-07-12 CN CN201610547425.3A patent/CN106045154A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05317892A (en) * | 1992-05-21 | 1993-12-03 | Mitsuboshi Belting Ltd | Method for removing salts from soil containing salts |
| CN102295348A (en) * | 2010-12-20 | 2011-12-28 | 北京航空航天大学 | Removing method of salt in recession of saline and alkaline land |
| CN102173531A (en) * | 2011-01-12 | 2011-09-07 | 北京恒源嘉达科技有限公司 | In-situ processing method of alkaline land washing water |
| US20140346125A1 (en) * | 2013-03-14 | 2014-11-27 | Robert W. Stiles, Jr. | Desalting Salty Sludge System and Method |
| CN103303988A (en) * | 2013-07-03 | 2013-09-18 | 张维 | Treatment method of saline-alkali soil reformation wastewater |
| CN203794717U (en) * | 2014-04-02 | 2014-08-27 | 杭州中艺园林工程有限公司 | Wash-water recycling device for saline-alkali soil |
| CN204162531U (en) * | 2014-09-28 | 2015-02-18 | 青岛中亚环保工程有限公司 | A kind of alkaline land improvement system |
| CN105293785A (en) * | 2015-12-04 | 2016-02-03 | 天津海钢板材有限公司 | Sewage recycling device |
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Application publication date: 20161026 |