Device and method for treating high-concentration ammonia nitrogen wastewater

A technology for ammonia nitrogen wastewater and treatment equipment, which is applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., and can solve problems such as complex treatment process, poor treatment effect, and secondary pollution. Simple processing flow, low cost and good processing effect

Active Publication Date: 2014-06-04
山东众音化学科技有限公司
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Problems solved by technology

[0057] The purpose of the present invention is to solve the technical problems of the existing high-concentration ammonia nitrogen wastewater treatment methods, such as high cost, complicated treatment process, poor treatme

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  • Device and method for treating high-concentration ammonia nitrogen wastewater
  • Device and method for treating high-concentration ammonia nitrogen wastewater

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Embodiment Construction

[0078] The invention adopts a physical method for processing. First, after the ADC foaming agent wastewater is settled and recovered, the insoluble matter is almost zero, which provides reliable raw materials for the water treatment project. Then use the four-effect countercurrent evaporation process, the fourth-effect feed, the first-effect high temperature precipitation of sodium chloride, and the sodium chloride product after centrifugation; the two-stage flash process is adopted, and the first-effect clear liquid is passed through the two-stage flash device. The ammonium chloride is precipitated, and the ammonium chloride product is obtained after centrifugation, and the condensed water is reused in the production system to realize zero discharge of wastewater.

[0079] In the first step, the ADC foaming agent wastewater with a specific gravity of 1.23 at 30-40°C is collected from the pipeline and flows into the sump, and then passes through the sedimentation tank for natural ...

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Abstract

The invention relates to a device and a method for treating high-concentration ammonia nitrogen wastewater, which solve technical problems that an existing high-concentration ammonia nitrogen wastewater treatment method is high in cost, complex in treatment process, poor in treatment effect, and produces secondary pollution. The method comprises the following steps: firstly, adopting a quadruple-effect counter-flow evaporation process to separate out sodium chloride after settling and recycling the wastewater, and obtaining a sodium chloride product after centrifuging; and then, separating out ammonium chloride at a low temperature after adopting a two-stage flash evaporation process. The device and the method disclosed by the invention can be widely applied to treating high-concentration ammonia nitrogen wastewater.

Description

Technical field [0001] The invention relates to a water treatment device and a water treatment method, in particular to a high-concentration ammonia nitrogen wastewater treatment device and method. Background technique [0002] At present, there are mainly the following methods for the treatment of high-concentration ammonia nitrogen wastewater: [0003] 1. Blow off method. [0004] Under alkaline conditions, a method of separation using the gas-liquid equilibrium relationship between the gas-phase concentration and the liquid-phase concentration of ammonia nitrogen. It is generally believed that the blow-off efficiency is related to temperature, pH, and gas-liquid ratio. [0005] Relevant domestic experts have studied the removal of ammonia nitrogen in landfill leachate by stripping method. The key factors to control the stripping efficiency are temperature, gas-liquid ratio and pH. When the water temperature is greater than 125℃, the gas-liquid ratio is controlled at about 3500, a...

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Application Information

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IPC IPC(8): C02F9/10C01D3/06C01C1/16
Inventor 初建泽王振军杨洪岭赵秀芬孔庆熙殷秀梅陈波伦刘杰峰
Owner 山东众音化学科技有限公司
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