CN103303995A - Method for carrying out advanced treatment on waste water by utilizing diatomite - Google Patents
Method for carrying out advanced treatment on waste water by utilizing diatomite Download PDFInfo
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- CN103303995A CN103303995A CN2012100676301A CN201210067630A CN103303995A CN 103303995 A CN103303995 A CN 103303995A CN 2012100676301 A CN2012100676301 A CN 2012100676301A CN 201210067630 A CN201210067630 A CN 201210067630A CN 103303995 A CN103303995 A CN 103303995A
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Abstract
The invention provides a method for carrying out advanced treatment on waste water by utilizing diatomite, which is good in treatment effect, and capable of reducing the volume of a reaction tank and increasing the number of recycling times. The method comprises the following steps of: (1) adding fine diatomite into the reaction tank, delivering domestic sewage tail water into the reaction tank through a secondary sedimentation tank, stirring and reaction in the reaction tank to carry out advanced treatment; (2) delivering the water subjected to advanced treatment into a sedimentation tank; and (3) dewatering sludge in the reaction tank and the sedimentation tank so as to recover fine diatomite. The method for carrying out advanced treatment on waste water by utilizing diatomite is good in treatment effect, not only organic pollutant can be removed, but also the effect on removing ammonia nitrogen and the like is good; the fine diatomite is strong in adsorption capability, fast in an adsorption speed, and capable of reducing the volume of the reaction tank; a part of fine diatomite in the sedimentation tank can be recycled, the number of recycling times is increased, and the sludge yield can be reduced.
Description
Technical field
The present invention relates to a kind of advanced waste treatment method, especially a kind of method of utilizing diatomite waste water to be carried out advanced treatment.
Background technology
Advanced treatment claims tertiary treatment again, and it is to utilize physical chemistry or biological method further to remove the scavenging process of impurity in the sewage that secondary effluent still fails to remove fully or pollution substance, to satisfy the requirement of reusing sewage.Advanced treatment technology commonly used at present is a lot, traditional treatment method (coagulation-precipitation-filtration), charcoal absorption, membrane separation technique, BAF, ozone oxidation, sterilization and natural purification system etc. are roughly arranged, and can selecting for use wherein, one or more carry out advanced treatment to sanitary sewage.The conventional depth treatment process is used widely, and is better to turbidity, SS, BOD and TP removal effect, but lower to ammonia-N removal rate; The micropore that activated carbon surface is a large amount of, can form huge specific surface area, by sorptive power decolouring, deodorizing and taste removal, and can remove most of organism in the sewage, this method also is widely used in advanced treatment of wastewater, but activated carbon capillary is easily blocked, influent quality pH narrow application range, and anti-shock loading is poor; Membrane separation technique also is widely used in sewage treatment area at present, and it is low to have a delivery turbidity, advantages such as good separating effect, but film pollutes and problems such as concentration difference polarization, cleaning, price have limited the further popularization of membrane technique; BAF is an old technology, have physical filtering and biological degradation dual-use function, do not need advantages such as second pond, but its denitrification dephosphorization function is limited, design or miscarriage easily cause filler to run off, and need continuous backwash, and the back flushing water yield is big, head loss is also bigger, and working cost is higher; Ozone has strong oxidizing property, has good decolouring and sterilizing function, but ozone oxidation to the ammonia nitrogen removal poor effect, the ozone of generation can't be stored, working cost is higher, large-scale popularization is used and still to be acquired a certain degree of difficulty; The complete simulating nature wetland of artificial swamp, the artificial designing natural ecosystem, remove pollution substance by filtration, absorption, precipitation, microbiological degradation and plant absorbing, but its floor space is big, be subject to the influence of hydraulic load, pollution load, and decontamination effect improving is subjected to the growth effect of weather and plant remarkable, and development space is restricted.
Adopt active carbon absorption technology or ion exchange resin absorbing process to carry out advanced treatment, sanitary sewage tail water is fed activated-charcoal filter bed or ion exchange column, adsorb organic compound, TN and TP.The charcoal absorption function singleness, though have bigger specific surface area, but loading capacity is limited, and only pollution substance in the waste water there is adsorption function, ion-exchange is to utilize the principle of ion-exchange that sanitary sewage tail water is carried out advanced treatment, ammonia nitrogen and TP are had treatment effect preferably, but ion exchange resin regeneration then is this advanced treatment The Application of Technology bottleneck.
Summary of the invention
The invention provides a kind for the treatment of effect good, can reduce the reaction tank volume, increase the diatomite that utilizes recycle number of times and waste water is carried out the method for advanced treatment.
The diatomite that utilizes of realizing the object of the invention carries out the method for advanced treatment to waste water, comprises the steps:
(1) diatomite is added reaction tank, sanitary sewage tail water is sent into reaction tank by second pond, and reaction tank is carried out stirring reaction, carries out advanced treatment; Diatomite has neutralizing effect, utilize the diatom surface to have uneven current potential, charged colloidal particle in the sewage and charged element are neutralized, also have throwing out, adsorption simultaneously, also have filteration in some special device, the synergy of each function by diatomite reaches the purpose of waste water advanced processing;
(2) water after the advanced treatment is sent into settling tank;
(3) mud with reaction tank and settling tank dewaters, and reclaims diatomite.
The add-on of the middle diatomite of described step (1) is determined according to the amount of the sanitary sewage tail water that second pond is sent into.
The beneficial effect of diatomite carries out advanced treatment to waste water method that utilizes of the present invention is as follows:
The diatomite that utilizes of the present invention carries out the method for advanced treatment to waste water, and treatment effect is good, not only can remove organic pollutant, and is good to removal effects such as ammonia nitrogens; The diatomite high adsorption capacity, rate of adsorption is fast, can reduce the reaction tank volume; The diatomite energy reuse of partly precipitated pond, increase recycles number of times, reduces sludge yield.
Embodiment
The diatomite that utilizes of the present invention carries out the method for advanced treatment to waste water, utilizes diatomite that waste water is carried out the method for advanced treatment, comprises the steps:
(1) diatomite is added reaction tank, sanitary sewage tail water is sent into reaction tank by second pond, and reaction tank is carried out stirring reaction, carries out advanced treatment; Diatomite has neutralizing effect, utilize the diatom surface to have uneven current potential, charged colloidal particle in the sewage and charged element are neutralized, also have throwing out, adsorption simultaneously, also have filteration in some special device, the synergy of each function by diatomite reaches the purpose of waste water advanced processing;
(2) water after the advanced treatment is sent into settling tank;
(3) mud with reaction tank and settling tank dewaters, and reclaims diatomite.
The add-on of the middle diatomite of described step (1) is determined according to the amount of the sanitary sewage tail water that second pond is sent into.
Determine the diatomite dosage according to the second pond water flow.Generally, to sanitary sewage disposal factory, influent concentration is lower and move under the normal situation, water outlet can be satisfied one-level A emission standard, but when treatment facility is subjected to impact load and influences or when being subjected to other factor affecting, the Aerobic Pond water outlet can not be satisfied emission request, the Aerobic Pond effluent COD concentration is generally about 80mg/L, this moment, diatomaceous dosage can add according to the amount of 40mg/L, and this dosage can also be optimized according to actual Aerobic Pond outlet water organic substance concentration and concentration of nitrogen and phosphorus.After reaction was finished, water outlet COD can satisfy one-level A emission standard,, can reach about 30% the clearance of ammonia nitrogen and total nitrogen near 50% the clearance of COD, and the clearance of total phosphorus is reached 56%.Fully contact with waste water at the diatomite that in reaction tank, adds, pollution substance in the waste water is adsorbed, coagulation, mixture enters settling tank, diatomite sinks under the effect of gravity, with water sepn, waste water flows out from settling tank, the diatomite partial reflux of precipitation continues to participate in reaction to reaction tank, the excess sludge that produces in another part and the leading portion biological process enters the processed link in the lump and handles, and makes like this and can satisfy one-level A emission standard fully through the water outlet after the diatomite advanced treatment.
Embodiment recited above is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the spiritual prerequisite not breaking away from the present invention; various distortion and improvement that the common engineering technical personnel in this area make technical solution of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (2)
1. one kind is utilized diatomite that waste water is carried out the method for advanced treatment, comprises the steps:
(1) diatomite is added reaction tank, sanitary sewage tail water is sent into reaction tank by second pond, and reaction tank is carried out stirring reaction, carries out advanced treatment;
(2) water after the advanced treatment is sent into settling tank;
(3) mud with reaction tank and settling tank dewaters, and reclaims diatomite.
2. the diatomite that utilizes according to claim 1 carries out the method for advanced treatment to waste water, it is characterized in that: the amount of the sanitary sewage tail water that the add-on of diatomite is sent into according to second pond in the described step (1) is determined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100676301A CN103303995A (en) | 2012-03-15 | 2012-03-15 | Method for carrying out advanced treatment on waste water by utilizing diatomite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100676301A CN103303995A (en) | 2012-03-15 | 2012-03-15 | Method for carrying out advanced treatment on waste water by utilizing diatomite |
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| CN103303995A true CN103303995A (en) | 2013-09-18 |
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| CN2012100676301A Pending CN103303995A (en) | 2012-03-15 | 2012-03-15 | Method for carrying out advanced treatment on waste water by utilizing diatomite |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590067A (en) * | 2013-11-21 | 2014-02-19 | 化工部长沙设计研究院 | Method for removing organic nitrogen from salt water |
| CN104961294A (en) * | 2015-06-10 | 2015-10-07 | 山西科元晟地科技有限公司 | Apparatus for treating reverse osmosis strong brine by using purified diatomite bio-system, and method thereof |
| CN110790433A (en) * | 2019-12-01 | 2020-02-14 | 柏威达(南京)环境科技有限公司 | Treatment process of industrial aluminum production wastewater |
| CN113321385A (en) * | 2021-06-30 | 2021-08-31 | 陈宁 | Method for reducing tail water COD value in activated sludge process sewage treatment system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362623A (en) * | 2008-08-18 | 2009-02-11 | 江苏省嘉庆水务发展有限公司 | Sewage water treatment method by essential diatom earth cooperation with biochemical action |
-
2012
- 2012-03-15 CN CN2012100676301A patent/CN103303995A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362623A (en) * | 2008-08-18 | 2009-02-11 | 江苏省嘉庆水务发展有限公司 | Sewage water treatment method by essential diatom earth cooperation with biochemical action |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590067A (en) * | 2013-11-21 | 2014-02-19 | 化工部长沙设计研究院 | Method for removing organic nitrogen from salt water |
| CN103590067B (en) * | 2013-11-21 | 2016-03-09 | 化工部长沙设计研究院 | A kind of method removing organonitrogen in salt solution |
| CN104961294A (en) * | 2015-06-10 | 2015-10-07 | 山西科元晟地科技有限公司 | Apparatus for treating reverse osmosis strong brine by using purified diatomite bio-system, and method thereof |
| CN110790433A (en) * | 2019-12-01 | 2020-02-14 | 柏威达(南京)环境科技有限公司 | Treatment process of industrial aluminum production wastewater |
| CN113321385A (en) * | 2021-06-30 | 2021-08-31 | 陈宁 | Method for reducing tail water COD value in activated sludge process sewage treatment system |
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Application publication date: 20130918 |