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Polyurethane sewage treatment system and method using complex microbial inoculant

A sewage treatment method and compound bacterial agent technology, which are applied in water/sewage treatment, biological water/sewage treatment, light water/sewage treatment, etc., can solve the problem of low oxidation efficiency, ozone damage, and inability to efficiently complete the complex components in wastewater Treatment and other problems, to achieve the effect of rapid reproduction and metabolism, and improved denitrification efficiency

Active Publication Date: 2020-09-18
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantages of this invention are obvious, but there is no effective step in removing the total nitrogen content, the type of microorganisms used is single, and the treatment of complex components in wastewater cannot be efficiently completed, and the treatment effect of using ozone for post-oxidation in step 6 is relatively low. The oxidation efficiency of the ultraviolet synergistic hydrogen peroxide advanced oxidation used in the present invention is on the low side, and once the ozone is stored unfavorably and inhaled into the human body, it will cause irreversible damage

Method used

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  • Polyurethane sewage treatment system and method using complex microbial inoculant
  • Polyurethane sewage treatment system and method using complex microbial inoculant

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1: a kind of polyurethane sewage treatment method of application composite bacterial agent comprises the following steps:

[0054] (1) Mix various bacteria in proportion to form a microbial composite bacterial agent;

[0055] The ratio of various bacteria is as follows: Lactobacillus 58%, Prevotella 23.6%, Acetobacter 1.53%, Candida boidinii 0.57%, Veillonella 0.6%, Rhodospirillum 0.8%, polyphosphorus Bacteria 10.8%, photosynthetic bacteria (eg: Rhodopseudomonas, etc.) 6.8%, nitrifying bacteria (eg: ammonia oxidizing bacteria, etc.) 7.3%.

[0056] (2) Mix 1 part by weight of the composite bacterial agent with 2 parts by weight of molasses and 100 parts by weight of water to prepare a solution a; place the solution a in an anaerobic environment for sealed cultivation for 5 days to obtain the activated solution a;

[0057] Take 1 part by weight of activated solution a, 1 part by weight of molasses, and 50 parts by weight of water, mix evenly, and configure sol...

Embodiment 2

[0064] Embodiment 2: a kind of polyurethane sewage treatment method that uses composite bacterial agent, comprises the following steps:

[0065] (1) Mix various bacteria in proportion to form a microbial composite bacterial agent;

[0066] The ratio of various bacteria is as follows: Lactobacillus 64%, Prevotella 20%, Acetobacter 5%, Candida boidinii 1.76%, Veillonella 1.49%, Rhodospirillum 0.25%, polyphosphorus Bacteria 2.5%, photosynthetic bacteria (eg: Rhodopseudomonas, etc.) 5%.

[0067] (2) Mix 1 part by weight of the composite bacterial agent with 5 parts by weight of molasses and 100 parts by weight of water to prepare a solution a; place the solution a in an anaerobic environment for sealed cultivation for 5 days to obtain the activated solution a;

[0068] Take 1 part by weight of activated solution a, 0.8 parts by weight of molasses, and 50 parts by weight of water and mix evenly to form solution b; place solution b in an aerobic environment for 3 days, and aerate 2...

Embodiment 3

[0076] A method for treating polyurethane sewage using a composite bacterial agent, comprising the following steps:

[0077] (1) Mix various bacteria in proportion to form a microbial composite bacterial agent;

[0078] The ratio of various bacteria is as follows: Lactobacillus 60%, Prevotella 25%, Acetobacter 3%, Candida boidinii 1.5%, Veillonella 1%, Rhodospirillum 1%, polyphosphorus Bacteria 3.2%, photosynthetic bacteria (eg: Rhodopseudomonas, etc.) 5.3%.

[0079] (2) Mix 1 part by weight of the composite bacterial agent with 8 parts by weight of molasses and 100 parts by weight of water to prepare a solution a; place the solution a in an anaerobic environment for sealed cultivation for 5 days to obtain the activated solution a;

[0080] Take 1 part by weight of activated solution a, 1 part by weight of molasses, and 50 parts by weight of water, mix evenly, and configure solution b; place solution b in an aerobic environment for 5 days, and aerate 2-4 times a day, each tim...

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Abstract

The invention discloses a polyurethane sewage treatment system and method using a complex microbial inoculant. Wastewater generated in the polyurethane production process is treated by using a complexmicrobial inoculant diluent, which is prepared from a complex microbial inoculant and is activated; through anoxic, aerobic, precipitation, reflux, ultraviolet synergistic advanced oxidation and other operations, COD, total nitrogen and other indexes of the wastewater are reduced, the wastewater treatment capacity is improved, and compared with the prior art, the method is simpler, more convenient, easier to operate, lower in cost and higher in effluent quality.

Description

technical field [0001] The invention belongs to the technical field of sewage purification and treatment, and relates to a biological treatment method for industrial wastewater, in particular to a polyurethane sewage treatment method using a composite bacterial agent. Background technique [0002] When sedimentation and other methods are used to treat waste water, the concentration of aerobic concentrated waste sludge will increase, and the decomposition of organic matter will become slower, so the pollution will become more and more serious as time goes by. As the industry tends to be large-scale and quantified, and the rapid development of the textile light industry, the amount of river water and waste water continues to increase. The harmful substances in it cannot be effectively treated and discharged. The natural environment is gradually being destroyed, and the waste water is concentrated. The generation and discharge of mud cause environmental pollution to become more...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30
CPCC02F9/00C02F3/302C02F3/348C02F2001/007C02F1/32C02F1/722C02F2101/30Y02W10/10
Inventor 孙芳芳王天泽杨勇
Owner HANGZHOU DIANZI UNIV