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
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 treatmen

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap