强化EGSB-好氧组合工艺处理马铃薯淀粉废水研究

马铃薯淀粉废水具有处理难度大、有机污染物浓度高等特点,属于高难度有机废水。为了有效的解决马铃薯淀粉废水造成的环境污染问题,采用强化厌氧膨胀颗粒污泥床组合好氧工艺对有机污染物质和氨氮的去除效能进行研究。研究结果表明-强化厌氧膨胀颗粒污泥床在最佳运行工况条件下(进水温度为30℃、外回流比为2和水力停留时间24 h),组合工艺出水COD质量浓度和氨氮浓度分别在92.35 mg/L和10.28 mg/L左右,去除率分别在98.85%和86.29%左右,出水水质能够满足《污水综合排放标准》(GB8978—1996)二级标准,说明该工艺是一种适用于马铃薯淀粉废水的处理技术。

Study on theenhanced EGSB-aerobic combined process treatment of potato starch wastewater

Potato stareh wastewater has the characteristics of diffeult treatment and high concentration of organie pollutants,it belongs to high difficulty onganic wastewater。In order to solve the environmental pllution caused by potato starch wastewater effectively,the enhanced EGSB-aerobic combined process was used to remove organic matter and study the ammonia nitrogen characteris-tica of refluent.The results showed that under the best operating conditions(influent temperature 30 ℃,reflux ratio 2 and HRT 24 h),the Combined proeess effluent C0D and NH₃-N were about 92.35 ng/L and 10.28 mg/L,the removal rates were about 98.85% and 86.29% respectively,the efluent could come up to the scond level slandard of"Integrated Wastewater Discharge Standard"(CB8978-1996).Therefore,it was a suitable treatment of potato starch wastewater.