- 城市污水處理廠污泥調(diào)質(zhì)用絮凝劑的選擇
- Selection of Polymeric Flocculant for Adjusting the Sludge Quality of Municipal Wastewater Treatment Plants
- 張勤 張幸濤 陳濱 陳恒寶 張有倉
- 土木與環(huán)境工程學(xué)報(bào)（中英文） 2006年28卷第1期 頁碼：80-83
- DOI：10.11835/j.issn.1674-4764.2006.01.020
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紙質(zhì)出版日期：2006
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摘要
經(jīng)濃縮的城市污水處理廠剩余污泥,一般是通過投加絮凝劑調(diào)質(zhì)后進(jìn)行機(jī)械脫水處理。絮凝劑品種選擇、投加量多少都直接影響污泥的脫水效果,絮凝劑的費(fèi)用也是污泥處理運(yùn)行費(fèi)用的重要組成部分。結(jié)合鎮(zhèn)江污水處理廠污泥的產(chǎn)生、濃縮處理、脫水形式過程的生產(chǎn)實(shí)踐,針對(duì)污泥的調(diào)質(zhì)用絮凝劑的種類、用量等著手,進(jìn)行絮凝劑的分析選擇。提出了絮凝劑的選擇應(yīng)該遵循的原則以及確定污泥處理中藥劑費(fèi)的簡(jiǎn)易方法,同時(shí)建議城市污水處理廠在運(yùn)行中應(yīng)根據(jù)季節(jié)的變化調(diào)整絮凝劑用量。
Abstract
The thickened surplus sludge from municipal wastewater treatment plants is generally mechanically dewatered after regulated with flocculants and the type and dosage of flocculants will influence the dewatering effect directly.And the cost of flocculants is the main part of operating cost of sewage sludge treatment.With the processing practice on yields,thickening and dewatering pattern of Zhenjiang Wastewater Treatment Plant,the analysis and selection of flocculants are carried out with respect to the type and dosage of flocculants for sewage sludge regulation.the principles for flocculants selection and simple calculation method for chemicals cost for sludge treatment are proposed.It is suggested that the dosage of flocculants for sludge regulation should be adjusted in different seasons in real operation of the municipal wastewater treatment plants.
