CN105016568A - Method for treating high salinity wastewater - Google Patents
Method for treating high salinity wastewater Download PDFInfo
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- CN105016568A CN105016568A CN201410176005.XA CN201410176005A CN105016568A CN 105016568 A CN105016568 A CN 105016568A CN 201410176005 A CN201410176005 A CN 201410176005A CN 105016568 A CN105016568 A CN 105016568A
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Abstract
The invention relates to a method for treating high salinity wastewater. The method comprises the following steps: introducing wastewater to a regulating tank and adjusting water quality and quantity; discharging regulated treated water into a coagulative precipitation tank, adding a flocculating agent and a desalting agent, performing a coagulating reaction and finally performing precipitation; discharging the coagulated and precipitated treated water into an electrodialytic electrodeionization (EDI) device and reducing the wastewater salt content by 90-95%; discharging the treated water having undergone dialysis into a two-phase anaerobic reaction device to perform an acid production and methane production reaction and remove most of organic matters; introducing the treated water to an intermediate sedimentation tank and adding a coagulant; leading the treated water in a contact oxidation reaction device and causing the treated water to pass through a biological membrane to remove the remaining organic matters; discharging the treated water into a secondary sedimentation tank and performing natural precipitation; and discharging the treated water into a water outlet tank. The method is simple in operating steps, good in treatment effect and low in cost.
Description
Technical field
The present invention relates to a kind of method of wastewater treatment, be specifically related to a kind for the treatment of method for high-salinity wastewater.
Background technology
China is the country that water resources is abundant, but due to distribution of water resources uneven, it is serious to add waste, and causing China is the serious country of drought and water shortage.Water is valuable resource, and therefore, all trades and professions are enterprise especially, how to accomplish that water resources reuses, has become extremely urgent problem.
At present, for the technical finesse of high density saliferous trade effluent, mainly contain wet-air oxidation law technology, Wet Catalytic Oxidation Method technology, evaporation recovery etc., it is high to there is energy consumption in them, and investment is large, complex operation step, the shortcomings such as treatment effect is undesirable, do not meet actual operation requirements.
Summary of the invention
Goal of the invention: the object of the invention is to overcome deficiency of the prior art, provide a kind of operation steps simple, treatment effect is good, and cost is low, long service life, the treatment method for high-salinity wastewater of realistic service requirements.
Technical scheme: in order to solve the problems of the technologies described above, a kind for the treatment of method for high-salinity wastewater of the present invention, it comprises the following steps:
(1) waste water is passed into regulating tank, the regulating water quality water yield, hydraulic detention time 6-12 hour, carry out aeration agitation, gas-water ratio 4:1;
(2) the process water through overregulating is entered coagulative precipitation tank, drop into coagulating agent and desalting agent, the coagulating time is 15 minutes, finally precipitates 1 hour;
(3) the process water after coagulating sedimentation is entered electrodialysis EDI device, the reaction times is 2 hours, removes the waste water saliferous rate of 90-95%;
(4) the process water after dialysis is entered diphasic anaerobic reaction unit, its dissolved oxygen is 0.1-0.5mg/L, carries out product acid and methane phase reaction, removes most of organism;
(5) process water is passed into intermediate sedimentation pond, drop into coagulating agent, the coagulating time is 15 minutes, finally precipitates 30 minutes;
(6) process water is passed into contact oxidation device, its dissolved oxygen is 1-5mg/L, by microbial film, removes residual organic substances;
(7) process water is entered secondary sedimentation basins, carry out natural sedimentation 2 hours;
(8) process water is entered outlet sump.
In described step (4), produce in acid and each comfortable autonomous container of methane phase and react.
In described step (6), be divided into one-level contact oxidation and two-stage biological contact oxidation reaction.
In the present invention, the feature of diphasic anaerobic method is: organic anaerobic degradation is divided into product acid and 2 stages of methane phase, envrionment conditions best is separately created in 2 independently container, cultivate the microorganism that two large classes are different, the advantage anerobe that each hydrolytic tank has oneself different or amphimicrobe, make macromolecule organic that is baroque, difficult degradation be converted into micromolecular organism.
In the present invention, the feature of contact oxidation method is: filler is covered with microbial film, and the sewage of oxygenation extensively contacts with microbial film, and under the metabolism of the microorganism on microbial film, dirty Organic substance in water is removed.
Beneficial effect: compared with prior art, its remarkable advantage is: the present invention is easy to operate in the present invention, and each step closely cooperates, and treatment effect is good, and cost is low, long service life, realistic service requirements.
Embodiment
Below by embodiment, the present invention is further illustrated.
A kind for the treatment of method for high-salinity wastewater of the present invention, it comprises the following steps:
(1) waste water is passed into regulating tank, the regulating water quality water yield, hydraulic detention time 6-12 hour, carry out aeration agitation, gas-water ratio 4:1;
(2) the process water through overregulating is entered coagulative precipitation tank, drop into coagulating agent and desalting agent, the coagulating time is 15 minutes, finally precipitates 1 hour;
(3) the process water after coagulating sedimentation is entered electrodialysis EDI device, the reaction times is 2 hours, removes the waste water saliferous rate of 90-95%;
(4) the process water after dialysis is entered diphasic anaerobic reaction unit, its dissolved oxygen is 0.1-0.5mg/L, carries out product acid and methane phase reaction, removes most of organism;
(5) process water is passed into intermediate sedimentation pond, drop into coagulating agent, the coagulating time is 15 minutes, finally precipitates 30 minutes;
(6) process water is passed into contact oxidation device, its dissolved oxygen is 1-5mg/L, by microbial film, removes residual organic substances;
(7) process water is entered secondary sedimentation basins, carry out natural sedimentation 2 hours;
(8) process water is entered outlet sump.
In described step (4), produce in acid and each comfortable autonomous container of methane phase and react.
In described step (6), be divided into one-level contact oxidation and two-stage biological contact oxidation reaction.
The present invention is easy to operate, and each step closely cooperates, and treatment effect is good, and cost is low, long service life, realistic service requirements.
The invention provides a kind of thinking and method; the method and access of this technical scheme of specific implementation is a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art, under the premise without departing from the principles of the invention, some improvements and modifications can also be made; these improvements and modifications also should be considered as protection scope of the present invention, and all available prior art of each integral part not clear and definite in the present embodiment is realized.
Claims (3)
1. a treatment method for high-salinity wastewater, is characterized in that: it comprises the following steps:
(1) waste water is passed into regulating tank, the regulating water quality water yield, hydraulic detention time 6-12 hour, carry out aeration agitation, gas-water ratio 4:1;
(2) the process water through overregulating is entered coagulative precipitation tank, drop into coagulating agent and desalting agent, the coagulating time is 15 minutes, finally precipitates 1 hour;
(3) the process water after coagulating sedimentation is entered electrodialysis EDI device, the reaction times is 2 hours, removes the waste water saliferous rate of 90-95%;
(4) the process water after dialysis is entered diphasic anaerobic reaction unit, its dissolved oxygen is 0.1-0.5mg/L, carries out product acid and methane phase reaction, removes most of organism;
(5) process water is passed into intermediate sedimentation pond, drop into coagulating agent, the coagulating time is 15 minutes, finally precipitates 30 minutes;
(6) process water is passed into contact oxidation device, its dissolved oxygen is 1-5mg/L, by microbial film, removes residual organic substances;
(7) process water is entered secondary sedimentation basins, carry out natural sedimentation 2 hours;
(8) process water is entered outlet sump.
2. treatment method for high-salinity wastewater according to claim 1, is characterized in that: in described step (4), produces in acid and each comfortable autonomous container of methane phase and reacts.
3. treatment method for high-salinity wastewater according to claim 1, is characterized in that: in described step (6), is divided into one-level contact oxidation and two-stage biological contact oxidation reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410176005.XA CN105016568A (en) | 2014-04-28 | 2014-04-28 | Method for treating high salinity wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410176005.XA CN105016568A (en) | 2014-04-28 | 2014-04-28 | Method for treating high salinity wastewater |
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| CN105016568A true CN105016568A (en) | 2015-11-04 |
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| CN201410176005.XA Pending CN105016568A (en) | 2014-04-28 | 2014-04-28 | Method for treating high salinity wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668942A (en) * | 2016-04-01 | 2016-06-15 | 浙江东洋环境工程有限公司 | Treatment technique of high-concentration biorefractory organic wastewater |
| CN106395968A (en) * | 2016-11-08 | 2017-02-15 | 江苏润海能源科技有限公司 | Seawater desalination seawater desalting agent |
Citations (5)
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| CN102010094A (en) * | 2009-09-07 | 2011-04-13 | 中国石油化工股份有限公司 | Method for treating high-calcium and high-salt industrial wastewater |
| CN102390909A (en) * | 2011-10-13 | 2012-03-28 | 福建省科辉环保工程有限公司 | Method for treating nucleic acid waste water |
| CN102826710A (en) * | 2012-08-17 | 2012-12-19 | 北京交通大学 | Treatment process and treatment device of high-salinity high-ammonia nitrogen pharmaceutical sewage |
| CN102910785A (en) * | 2012-11-01 | 2013-02-06 | 广西大学 | Treatment method and device for high-concentration organic wastewater |
| WO2013112654A1 (en) * | 2012-01-27 | 2013-08-01 | Ohio University | Integrated precipatative-super critical technology for cost-effective treatment of flowback and produced water from unconventional gas resources |
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2014
- 2014-04-28 CN CN201410176005.XA patent/CN105016568A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010094A (en) * | 2009-09-07 | 2011-04-13 | 中国石油化工股份有限公司 | Method for treating high-calcium and high-salt industrial wastewater |
| CN102390909A (en) * | 2011-10-13 | 2012-03-28 | 福建省科辉环保工程有限公司 | Method for treating nucleic acid waste water |
| WO2013112654A1 (en) * | 2012-01-27 | 2013-08-01 | Ohio University | Integrated precipatative-super critical technology for cost-effective treatment of flowback and produced water from unconventional gas resources |
| CN102826710A (en) * | 2012-08-17 | 2012-12-19 | 北京交通大学 | Treatment process and treatment device of high-salinity high-ammonia nitrogen pharmaceutical sewage |
| CN102910785A (en) * | 2012-11-01 | 2013-02-06 | 广西大学 | Treatment method and device for high-concentration organic wastewater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668942A (en) * | 2016-04-01 | 2016-06-15 | 浙江东洋环境工程有限公司 | Treatment technique of high-concentration biorefractory organic wastewater |
| CN105668942B (en) * | 2016-04-01 | 2018-11-06 | 浙江东洋环境工程有限公司 | A kind for the treatment of process of high concentration and refractory organic wastewater |
| CN106395968A (en) * | 2016-11-08 | 2017-02-15 | 江苏润海能源科技有限公司 | Seawater desalination seawater desalting agent |
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Application publication date: 20151104 |
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