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Chlorobenzene and nitrochlorobenzene production waste water microbial treatment method

A microbial treatment, nitrochlorobenzene technology, applied in the direction of sustainable biological treatment, biological water/sewage treatment, natural water treatment, etc., can solve the problems of ordinary microbial treatment difficult to meet the standard, high operating cost of physical and chemical treatment, etc., and achieve excellent results Effect

Inactive Publication Date: 2009-03-25
SINOPEC NANJING CHEM IND CO LTD +1
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Problems solved by technology

[0004] The object of the present invention is to aim at technical problems such as high operating cost of physical and chemical treatment, difficulty in reaching standards in common microbial treatment, and proposes a microbial strain H.S.B. (High solution Bacteria) disclosed in Taiwan Patent (Patent No. 52123). Method for treating waste water produced by chlorinated benzene and nitrochlorobenzene

Method used

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Embodiment

[0011] In this embodiment, 1m per day is treated 3 The wastewater from the production of chlorinated benzene and nitrochlorobenzene was used as an experimental scale, and the process combination of pretreatment, oil removal and precipitation—pH adjustment and dilution—facultative oxygen system—aerobic system—BAC decolorization system was carried out for more than 3 months. Experimental Study. The main pollution indicators of production wastewater are: COD reaches 1500mg / l, chloride ion concentration reaches 21280mg / l, total salinity reaches 79300mg / l, toxic substrate nitrochlorobenzene reaches 56mg / l, and chromaticity is 2000 times. After oil removal and precipitation and pH adjustment and dilution, the total salinity entering the facultative system is controlled to be less than 25,000 mg / l for continuous water inflow and outflow experiments. Studies have shown that: H.S.B. microbial agents combined with 80-100 mesh activated carbon as a carrier, the domesticated sludge, in t...

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Abstract

The invention relates to a micro-organism treatment method of waste water of benzyl chloride and nitrochlorobenzene production, which belongs to the environmental protection technology field. The method, by mainly using H.S.B. patent microbial strains and combining the technique of a facultative oxygen system plus an oxic system plus a BAC system, successfully solves the technical problem of the waste water treated by the microorganism can also achieve national discharge standard of Class first, even though under the inhibition situations that the total salinity is up to 25000mg / l, chlorion concentration is up to 30000mg / l, with the existence of a plurality of toxic substances of benzyl chloride, nitrochlorobenzene, nitrobenzene and the like, moreover, the method does not generate any residue biological sludge, with the operation cost only 3.27 yuan / m<3> which is just 1 / 3-1 / 4 of materialization treatment for similar waste water.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a new method for microbial treatment of industrial wastewater, that is, a microbial treatment method for wastewater produced by chlorinated benzene and nitrochlorobenzene. Background technique [0002] The industrial production wastewater produced by the organic chemical industry generally has high pollution levels, complex pollutant components, toxicological characteristics such as highly toxic pollutants, and other physical and chemical characteristics such as high salt content and wide pH fluctuation range. At present, for this and similar organic chemical wastewater, most of the environmental protection field adopts physical and chemical treatment or pretreatment, combined with ordinary activated sludge treatment mode for treatment. Such as: catalytic oxidation technology, advanced oxidation technology, iron-carbon micro-electrolysis technology, s...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/34C02F1/40C02F1/52C02F1/66C02F3/02C02F3/10C02F103/36
CPCY02W10/10
Inventor 薛仁辉曹荣谢广明吴红兵黄志红戴杰
Owner SINOPEC NANJING CHEM IND CO LTD
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