Method and device for separately treating alkali-decrement wastewater according to quality
A technology for alkali reduction wastewater and quality separation treatment, which is applied in the textile industry wastewater treatment, water/sewage treatment, neutralization water/sewage treatment, etc. The problems of rising costs and difficulty in stably reaching the standard of effluent can achieve the effects of reducing the amount of odorous gas generated, reducing the hydraulic retention time, and reducing the salt content.
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[0034] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.
[0035] The alkali reduction wastewater treatment method of the present invention is a new method that combines reverse osmosis and biological treatment. By diverting the alkali reduction wastewater in different stages, the concentrated water reverse osmosis dilutes the salt to reduce the harm to the biological system, and the regenerated alkali solution is reused. , dilute alkaline water and alkali-reduced washing water are mixed and then biologically treated to achieve the purpose of recycling useful resources and purifying them. In the present invention, the initial alkali reduction wastewater is the alkali reduction concentrated alkaline water, and the subsequent washing and acetic acid neutralization wastewater are collectively referred to as alkali reduction washing water.
[0036] Such as figure 1 As shown, an alkali reduction waste water...
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