HPS高效澄清池去除黄河原水中泥沙的中试研究
HPS高效澄清池去除黄河原水中泥沙的中试研究
Pilot-scale Study on Removal of Silt in Raw Water of Yellow River by HPS Efficient Clarifier加关注
机构地区：[1]渭南市黄河水务有限责任公司 [2]甘肃金桥水科技<集团>有限公司
出 处：《中国给水排水》2018年第19期43-47,共5页China Water & Wastewater
摘 要：针对黄河中游原水中泥沙难以分离的问题,开发了HPS高效澄清池技术,并进行了中试研究。结果表明,不管是含沙量为2. 85～10. 96 kg/m^3、浊度为2 000～9 000 NTU的黄河原水,亦或是含沙量为30～90 kg/m^3、浊度为11 700～26 500 NTU的模拟超高浊度原水,HPS高效澄清池对其浊度的去除率均接近100%,出水浊度均稳定在10 NTU以下;另外,HPS高效澄清池对黄河原水中的CODMn也有一定的去除作用,平均去除率为40. 9%。混凝剂投加量随黄河原水浊度的升高而增加,但HPS高效澄清池排出的泥沙中未检测到药剂残留物;在原水含沙量<60 kg/m3的条件下,排泥耗水率随含沙量的增加而增加,但均在25%以下,满足引水工程的设计要求。HPS efficient clarifier technology was established and a pilot-scale study was conducted to solve the problem of difficult separation of silt in raw water of the middle Yellow River. The results showed that the removal rates of turbidity by HPS efficient clarifier were nearly 100% and the effluent turbidity was all stably below 10 NTU, whether silt concentration and turbidity of the raw water was 2.85 - 10.96 kg/m3 and 2 000 - 9 000 NTU, or silt concentration and turbidity of the simulated extremely high-turbidity water was 30 - 90 kg/m^3 and 11 700 - 26 500 NTU. In addition, HPS efficient clarifier al- so had a certain removal effect on COD-n in the raw water, and the average removal rate was 40.9%. Dosage of coagulant rose with the increase of the turbidity in the raw water. However, no chemicals residue was tested in the discharged sludge of HPS efficient clarifier. When the silt concentration of the influent was below 60 kg/m3, water consumption rate of discharged sludge rose with the increase of silt concentration. However, the water consumption rate was always less than 25 %, which could meet the need of design requirements of diversion works.
