The methods for decolorizing pulping middle-stage wastewater and the application of ozone at home and abroad are introduced.
介绍了目前国内外制浆中段废水的脱色方法以及臭氧的应用特点。
An improved oxidation ditch process using forced air supply low-pressure jet aeration system was used to treat middle-stage wastewater from pulping and papermaking.
采用供气式低压射流曝气系统改良型氧化沟工艺处理制浆造纸中段废水，对整个调试运行过程进行了介绍。
The difficult problem of black liquor and pulping middle-stage wastewater in small paper mills were processed to achieve the new national water pollution emission standard.
小纸厂废水处理的难题是黑液处置和中段废水处理达到新的国家水污染物排放标准。
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