Solid carbon source suitable for high-concentration nitrate nitrogen sewage treatment and preparation method thereof

A solid carbon source, sewage treatment technology, applied in water/sludge/sewage treatment, special compound water treatment, anaerobic digestion treatment, etc. , lignin is not easy to use and other problems, to achieve the effect of improving bioavailability, improving biodegradability, and improving degradability
CN111362404AInactive Publication Date: 2020-07-03宁波益可达新材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
宁波益可达新材料有限公司
Publication Date
2020-07-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a solid carbon source suitable for a high-concentration nitrate nitrogen sewage treatment. The solid carbon source comprises PBS, biologically fermented bamboo powder, starch,water and a silane coupling agent according to a ratio of (25-65): (30-50): (6-30): (1-4): (1-6). The preparation method comprises the following steps: step one, uniformly mixing PBS, biologically fermented bamboo powder, starch, water and a silane coupling agent in a high-speed mixer according to the set ratio; step two, adding the uniformly mixed materials into a twin-screw extruder, adjusting the temperature to 110-130 DEG C, carrying out internal mixing, melting, blending and uniformly stirring; and step three, extruding the blend by a twin-screw extruder, cooling the extrudate by water, crushing the extrudate, granulating the powder, and drying. The production cost of the solid carbon source is reduced, meanwhile, the biomass utilization rate is improved, and the waste of resources ismaximally reduced.
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Description

technical field

[0001] The invention relates to the technical field of sewage treatment, in particular to a solid carbon source suitable for high-concentration nitrate nitrogen sewage treatment and a preparation method thereof. Background technique

[0002] In today's society, with the rapid development of economy and society and the improvement of living standards, nitrogen pollution caused by human activities is becoming more and more serious. Nitrogen pollution has become a global environmental problem and has had many adverse effects on aquatic animals and plants, human health and ecosystem stability. In order to minimize the adverse effects of nitrogen pollution, various new treatment technologies and processes have been continuously developed and improved to meet the increasingly stringent nitrogen emission standards. At present, biological denitrification technology is widely used. Compared with other denitrification technologies, biological denitrification technolog...

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
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