A kind of advanced treatment method of natural rubber wastewater

A natural rubber, advanced treatment technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., to achieve the effect of improving treatment efficiency, good operation stability, and high volumetric load rate

Active Publication Date: 2017-04-12
DESIGN ENG OF SYRICI
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Problems solved by technology

[0004] Domestic scholars have carried out some research on rubber wastewater treatment, including anaerobic ammonium oxidation technology for denitrification, inorganic-organic composite flocculant flocculation technology for removal of turbidity and COD, all of which are limited to the removal of certain types of pollutants, and have not yet been seen. Reports on Advanced Treatment of Rubber Wastewater and Reuse of Produced Water

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  • A kind of advanced treatment method of natural rubber wastewater
  • A kind of advanced treatment method of natural rubber wastewater

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Embodiment

[0027] like figure 1 As shown, the latex processing wastewater of Hainan Sinochem Rubber No. 2 Plant was taken as the research object for advanced treatment:

[0028] (1) Lime milk coagulation treatment of latex processing wastewater: the latex processing wastewater of Hainan Sinochem Rubber No. 2 Plant enters the coagulation treatment unit, and a coagulant is added to the treatment unit. The coagulant is lime milk or lime milk and polyaluminum , stirring at 150r / min for 30-60s quickly, then stirring at 75r / min for 15-20min at a slow speed, free sedimentation for 30-50min, and taking CODcr, TP, and sediment amount as test indicators for the treated wastewater to screen the coagulant type and Consumption amount (referring to Table 1), wherein, the addition amount of milk of lime is to make the pH value of wastewater to be treated reach 7-8, and milk of lime is the emulsion that mass volume ratio is 10%. The water quality in the latex processing wastewater of Hainan Sinochem Ru...

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Abstract

The invention belongs to the technical field of industrial waste water treatment, and particularly relates to an advanced treatment method for natural rubber waste water. According to the method, natural rubber wastewater is sequentially subjected to lime milk coagulation, hydrolysis acidification, UASB anaerobic treatment, and anaerobic / facultative / aerobic biochemical treatment, supernatant is further subjected to coagulation and sand filtration, and obtained production water is directly used as gel processing water to be recycled, so that the advanced treatment zero emission of the natural rubber processing wastewater is realized. Through the adoption of the method, pollutants such as organic matters and ammonia nitrogen in natural rubber processing wastewater can be effectively degraded, the total nitrogen / phosphorus and colority of natural rubber processing wastewater are reduced, and a feasible technical scheme is provided for advanced treatment and production water industrial reuse of the natural rubber wastewater.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, in particular to a method for advanced treatment of natural rubber wastewater. Background technique [0002] Natural rubber processing wastewater (abbreviated as rubber wastewater) is mainly the wastewater discharged from the production of natural rubber with natural latex or rubber garden gel as raw material, as well as concentrated latex and skim rubber. According to different processes, natural rubber processing wastewater is divided into milk label wastewater and gel processing wastewater. But no matter what kind of wastewater, its composition is particularly complex, in addition to mainly containing rubber whey, there are also proteins, lipids, sugars and inorganic salts, etc., which is a kind of high-concentration organic sewage. The wastewater is slightly acidic, and the COD concentration is particularly high, and general anaerobic and aerobic treatments cannot mak...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 段秀梅安鹏张恺扬李秀珍
Owner DESIGN ENG OF SYRICI
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