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| 泥渣回流强化混凝沉淀再生水处理工艺条件优化 | |
| 引用本文： | 吕建波,孙力平,赵新华,姜春杰,王少坡. 泥渣回流强化混凝沉淀再生水处理工艺条件优化[J]. 水处理技术, 2010, 36(2) |
| 作者姓名： | 吕建波 孙力平 赵新华 姜春杰 王少坡 |
| 作者单位： | 1. 天津城市建设学院环境与市政工程系,天津300384;天津大学环境科学与工程学院,天津300072;天津城市建设学院天津市水质科学与技术重点实验室,天津300384 2. 天津城市建设学院环境与市政工程系,天津300384;天津城市建设学院天津市水质科学与技术重点实验室,天津300384 3. 天津大学环境科学与工程学院,天津,300072 |
| 基金项目： | 天津市科技攻关计划重点项目 |
| 摘 要： | 以北方某城市再生水厂原水为研究对象,通过泥渣回流强化混凝沉淀工艺进行再生水处理,研究了泥渣回流浓度、泥渣回流量、助凝剂投加量、泥渣回流位置、搅拌强度等参数对该工艺的运行效果影响.结果表明,经泥渣回流强化混凝沉淀后,再生水处理效果良好.在进水流量为200L·h~(-1)时,优化后工艺运行参数分别为:PAc投加量10mg·L~(-1),PAM投加量0.3 mg·L~(-1),泥渣回流质量浓度10 000～16 000 mg·L~(-1),泥渣回流量200 mg·L~(-1),混合池搅拌强度G=328 S~(-1),絮凝池搅拌强度G=22 S~(-1),泥渣回流位置在混合池.在最佳工艺运行条件下,出水水质达到了景观环境用水水质(GB/T 18921-2002)的要求. |
| 关 键 词： | 再生水 强化混凝 泥渣回流 工艺优化 |
CONDITIONS OPTIMIZATION OF ENHANCED COAGULATION/SEDIMENTATION PROCESS BY SLUDGE RECYCLING IN RECLAIMED WASTEWATER TREATMENT |
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| Lv Jianbo,Sun Liping,Zhao Xinhua,Jiang Chunjie,WANG Shaopo. CONDITIONS OPTIMIZATION OF ENHANCED COAGULATION/SEDIMENTATION PROCESS BY SLUDGE RECYCLING IN RECLAIMED WASTEWATER TREATMENT[J]. Technology of Water Treatment, 2010, 36(2) | |
| Authors: | Lv Jianbo Sun Liping Zhao Xinhua Jiang Chunjie WANG Shaopo |
| Affiliation: | Lv Jianbo1,2,3,Sun Liping1,Zhao Xinhua2,Jiang Chunjie1,WANG Shaopo1,3 (1.Department of Environmental , Municipal Engineering,Tianjin Institute of Urban Construction,Tianjin 300384,China,2.School of Environmental Science , Technology,Tianjin University,Tianjin 300072,3.Tianjin Key Laboratory of Water Quality Science , Technology,China) |
| Abstract: | Enhanced coagulation/sedimentation process by sludge recycling was investigated in wastewater treatment and reuse. The effect of recycled sludge concentration its dosage, coagulant aid dosage, and recycled sludge position and agitation intensity on removal efficiency was discussed. The results showed that at influent flow of 200 L·h~(-1), the optimum process condition was as following: PAC dosage 10 mg·L~(-1), PAM dosage 0.3 mg·L~(-1), recycled sludge concentration 10 000～ 16 000 mg·L~(-1), recycled sludge dosage 200 mg·L~(-1), agitation intensity in nuxing tank 328 S~(-1), agitation intensity in flocculation tank 22 S~(-1), and sludge was recycled at mixing tank. Furthermore, at the optimum process condition, effluent quality met the water quality standard of landscape environment (GB/T 18921 -2002). |
| Keywords: | reclaimed wastewater treatment enhanced coagulation/sedimentation sludge recycling conditions optimization |
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