摘要
自来水厂污泥直排水体会使水环境恶化,为此开展了掺调理剂改善其脱水性能的试验研究。结果表明,自来水厂污泥不宜采用混凝处理,而利用电厂粉煤灰作调理剂,可使污泥比阻大幅度下降,改善了脱水性能;细粉煤灰的最佳投量是20g/100mL,粗粉煤灰的最佳投量是30g/100mL;粉煤灰与污泥混合形成的滤饼掺入一定比例的煤炭后可做成燃料,实现了自来水厂污泥的焚烧处置。
Discharge of sludge from water works into waters will result in the increased deterioration of water environment. Therefore, experimental study was conducted on the addition of conditioning agent to improve sludge dewatering performance. The result shows that coagulation is inadaptable to the treatment of sludge from water works, and use of powdered coal ash from power plant as conditioning agent can greatly reduce the specific resistance of sludge and the dewatering performance can be improved. The optimal dosage of fine powdered coal is 20 g/100 mL and coarse powdered coal is 30 g/100 mL. Powdered coal is mixed with sludge to form filter cake, which is blended with coal in certain proportion to make into fuel, so that incineration of sludge from water works can be realized.
出处
《中国给水排水》
CAS
CSCD
北大核心
2005年第11期56-58,共3页
China Water & Wastewater
关键词
自来水厂
排泥水
污泥
比阻调理
water works
sludge water
sludge
conditioning of specific resistance
