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作 者:李巍巍
机构地区:[1]汕头市新思维环保技科有限公司工程部,广东汕头515041
出 处:《广东化工》2017年第10期147-148,150,共3页Guangdong Chemical Industry
摘 要:潜流人工湿地自然生态处理技术具有结构简单、建设运行费用低、抗冲击能力强、出水水质稳定等优点。但是,潜流人工湿地技术也存在许多不足之处,容易堵塞、处理效果不够稳定、溶解氧不足、氮磷去除效果不佳等问题。所以,将格栅、沉砂池和厌氧生物滤池设置在潜流人工湿地的前端,能将部分有机物进行水解、酸化,从而极大地降低SS的含量,减轻后续处理压力,有效的防治人工湿地的堵塞。同时在潜流人工湿地后端设置生态渠,强化对氮、磷的处理,有效提高氮、磷的去除率。As an eeotypic technology for wastewater treatment, constructed wetland had more advantages than other technologies, such as simple in structure, low investment in building and operation, strong in anti-strike and stabilization in effluent quality. But there were also many disadvantages in constructed wetland, sucb as easily blocked, treatment effect unstable, lack of dissolved oxygen, and deficiency in extractive of nitrogen and phosphorus. So grille, sand pool and anaerobic filter should be put in the front of constructed wetland and it can hydrolysis and acidificate part of organic matter, reduce the SS, and reduce the pressure of process comes by, prevent to clog the subsurface flow constructed wetland efficiently. The eco-ditch should be put in the back of subsurface flow constructed wetland, which can intensification the treatment of nitrogen & phosphorus and improve removal rates of nitrogen & phosphorus.
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