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Biochar filtration system for high-nitrogen wastewater treatment and operation way of biochar filtration system

A filtration system and wastewater treatment technology, which is applied in water/sewage treatment, water treatment parameter control, biological water/sewage treatment, etc., can solve the problems of large area, complex project cost, unstable effluent quality, etc., and meet the construction period Short, strong adsorption performance, prolonging the effect of hydraulic retention time

Active Publication Date: 2018-05-11
国家林业局竹子研究开发中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional sewage treatment method has the problems of large floor area, complex operation and management of project cost and operation cost, and unstable effluent quality

Method used

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  • Biochar filtration system for high-nitrogen wastewater treatment and operation way of biochar filtration system
  • Biochar filtration system for high-nitrogen wastewater treatment and operation way of biochar filtration system

Examples

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example 1

[0021] Adopt biochar high-nitrogen wastewater filtration system of the present invention to process pig farm wastewater, ammonia nitrogen concentration 150mg / L, system height 50cm, large particle biochar, biochar / sponge composite material, biochar / clay mineral composite material and activated biochar Fill in order from top to bottom with a thickness ratio of 7:5:3:1. The activated Bacillus subtilis, Bacillus amyloliquefaciens and yeast were mixed in equal proportions into the system, and the time ratio of the time for the injection of the bacteria liquid into the system and the time for the outflow of the system was adjusted to 1:5, and the acclimation period was 4 days. After the system is acclimatized, let it stand for 1 day, pass it into the waste water of high-nitrogen pig farms, distribute water according to the ratio of water distribution time and drying time of 1:5, run it for 30 days, acclimatize it again, and then run it again, and use the Nessler reagent method to mea...

example 2

[0025] The biochar high-nitrogen wastewater filtration system of the present invention is used to treat bamboo processing wastewater, the ammonia nitrogen concentration is 100mg / L, and the system height is 50cm. Large particle biochar, biochar / sponge composite material, biochar / clay mineral composite material and activated biochar are filled in order from top to bottom, with a thickness ratio of 7:5:3:1. Activated bacterial solution (mixed in equal proportions of Bacillus licheniformis, Bacillus subtilis, Bacillus amyloliquefaciens, lactic acid bacteria, bifidobacteria, yeast and actinomycetes) is introduced into the system, and the time of injection of the bacterial solution into the system and the flow rate of the outflow system are adjusted. The time ratio is 1:8, acclimation 4d. After the acclimatized system was left standing for 1 day, the waste water from high-nitrogen bamboo processing was introduced, and the water distribution time was 1:8 according to the ratio of wat...

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Abstract

The invention discloses a biochar filtration system for high-nitrogen wastewater treatment. The biochar filtration system comprises four layers of different biochar layers; the biochar layers are filled from top to bottom and are respectively a large-particle biochar layer, a biochar / sponge composite layer, a biochar / clay mineral composite layer and an activated biochar layer. The whole filtrationsystem is divided into three layers including an aerobic region, an anoxic-anaerobic region and an anaerobic region from top to bottom, nitrogenous pollutants in sewage are adsorbed by biochar on onehand and are utilized for nitration and denitrification on the other hand. The biochar filtration system is simple and practicable in process requirements and equipment investment, free of high-poweraeration equipment, free of professional environment-friendly equipment for system establishment, short in construction period and low in construction and operation costs.

Description

technical field [0001] The invention belongs to the technical field of ecology and environmental protection, and in particular relates to a biochar filter system for high-nitrogen wastewater treatment and its operation mode. Background technique [0002] Water eutrophication refers to a pollution phenomenon that changes the ecological balance of the entire water body caused by excessive plant nutrients such as nitrogen and phosphorus in lakes, rivers, reservoirs, etc. It has become the biggest cause of water environmental pollution and water ecological function degradation in my country. One of the main reasons. The root cause of water eutrophication is the increase of nutrients, mainly the input of nitrogen, phosphorus and other nutrients, among which nitrogen is the most serious pollutant. Most of the nitrogen that is not used by plants enters water bodies through surface runoff and groundwater. At the same time, the discharge of nitrogen in animal husbandry, fishery and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/16
CPCC02F1/283C02F3/308C02F3/34C02F2003/003C02F2101/105C02F2101/16C02F2101/163C02F2101/166C02F2203/004C02F2203/006C02F2209/08C02F2209/14
Inventor 张小平钟哲科杨生茂吕豪豪何莉莉
Owner 国家林业局竹子研究开发中心
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