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A treatment system and method for coking reverse osmosis concentrated brine

A treatment method, concentrated brine technology, applied in the field of water treatment, can solve problems such as environmental pollution

Active Publication Date: 2017-09-22
BAOSHAN IRON & STEEL CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In order to solve the problem of environmental pollution caused by the direct discharge of coking reverse osmosis concentrated brine, the purpose of the present invention is to provide a treatment system and method for coking reverse osmosis concentrated brine. Using the standard-reaching treatment system of the present invention, the one-time investment is low and the operation is easy. Simple, low production and treatment costs, is an environmentally friendly green treatment process for steel wastewater; according to the water quality and quantity of coking reverse osmosis concentrated brine, an economical and efficient reverse osmosis concentrated brine discharge treatment system has been developed

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  • A treatment system and method for coking reverse osmosis concentrated brine

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Embodiment Construction

[0038] A coking reverse osmosis concentrated brine treatment system, including a water inlet tank, a water inlet pump, a packing tank, a large aerobic tank, a small aerobic tank, a biological sedimentation tank, a water outlet tank, a nitrification sedimentation tank, a sludge return pump, and a nitrification sedimentation tank inlet Water pumps, nitrification sedimentation tank sludge pumps, mechanical mixers, air pumps, aeration sand heads, combined packing, sludge discharge valves, carbon source solvent pools and metering pumps.

[0039] The water quality conductivity of the reverse osmosis concentrated brine of the coking wastewater is 11000-19000 μs / cm, the chloride ion is 1500-5000 mg / L, the sulfate ion is 300-700 mg / L, the pH is 6-9, and the total nitrogen is 60-170 mg / L. L, nitrate nitrogen is 30~140mg / L, ammonia nitrogen is 25~75mg / L, COD is 40~520mg / L, BOD is 20~60mg / L.

[0040] The coking reverse osmosis concentrated brine flows into the water inlet tank through the...

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Abstract

The invention provides a coking reverse osmosis concentrated brine treatment system, which includes a water inlet tank, and the water inlet tank is sequentially connected with a filling tank, a large aerobic tank, a small aerobic tank, a biological sedimentation tank, and a water outlet tank through pipelines; The large aerobic tank is connected with the nitrification sedimentation tank through pipelines, and the nitrification sedimentation tank is connected with the packing tank, and a sludge return pump is arranged at the bottom of the nitrification sedimentation tank to allow the sludge to enter the large aerobic tank; the small aerobic tank passes through The pipeline is connected with the carbon source dissolving pool, and the carbon source dissolving pool pumps the dissolved carbon source into the small aerobic pool through the metering pump. Adopting the treatment system of the present invention has low one-time investment, simple operation and low production and treatment cost, and is an environment-friendly green treatment process for steel wastewater; according to the water quality and quantity of coking reverse osmosis concentrated brine, an economical and efficient treatment system has been developed. Reverse osmosis concentrated brine discharge treatment system up to standard.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a treatment system and method for coking reverse osmosis concentrated brine. Background technique [0002] As my country's basic industry, the iron and steel industry has developed rapidly since the reform and opening up, and has been in a high-speed development stage in recent years. However, the iron and steel industry is an industry with high energy consumption, high resources and high pollution, and its water consumption is huge, accounting for about 14% of the national industrial water consumption. [0003] The unit water consumption of my country's iron and steel enterprises is still higher than that of foreign advanced iron and steel enterprises. It is necessary to further reduce the new water consumption per ton of steel in iron and steel enterprises, improve the recycling rate of water in iron and steel enterprises, and strengthen the comprehensive tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F3/00C02F3/30
Inventor 李恩超金学文张宜莓侯红娟张永杰胡利光王鼎尹婷婷
Owner BAOSHAN IRON & STEEL CO LTD
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