摘要
针对长江南京段微污染原水的水质情况并为给水厂的粉末活性炭应急投加提供依据，通过烧杯试验确定了适宜的活性炭炭种、投加量和投炭点。结果表明，投加煤质粉末活性炭较投加木质炭或椰壳炭更为经济合理，且投加点在流程上越靠前越有利于活性炭吸附作用的充分发挥；活性炭与混凝剂的竞争吸附现象并不明显。活性炭的投量需根据不同水源的水质情况通过试验确定，针对长江南京段的原水水质，试验所确定的活性炭最佳投量为20～30mg／L。
According to the quality of micro-polluted raw water from Nanjing section of Yangtse River, the suitable kind of powdered activated carbon, dosage and dosing point are determined by jar test to provide a basis for adding powdered activated carbon in waterworks. The results show that addition of coal-based powdered activated carbon is more economic and rational than wood-based powdered activated carbon or coconut shell powdered activated carbon. The adsorption efficiency increases when activated carbon is dosed into the forepart treatment process due to the decreased competitive influence of coagulant. The dose of activated carbon may be confirmed by the pilot experiment for the different raw water conditions. The optimal dosage is 20 to 30 mg/L for raw water from Nanjing section of Yangtse River.
出处
《中国给水排水》
CAS
CSCD
北大核心
2007年第3期106-108,共3页
China Water & Wastewater
关键词
粉末活性炭
微污染原水
投加点
投炭量
powdered activated carbon
micro-polluted raw water
dosing point
PAC dosage
