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- AFA combinated with sand filtration process has been used for removing phosphorus in secondary effluent. 利用工业废弃物粉煤灰制备活性粉煤灰除磷剂AFA,将AFA与传统的砂滤工艺相结合,用于二级出水中磷的去除。
- This study tries to use upflow rough filtration as the pretreatment for slow sand filtration. 摘要尝试采用上向流粗滤，作为慢滤池的预处理。
- Wool scoring effluent purified by bioflocculation and sand filtration is clear, with total COD?SS removal rate up to 90%. 经生物絮凝处理的洗毛污水,直接经砂滤,总COD、SS去除率可达90%25以上,出水透明。
- This paper presents the recycling process of wastewater scouring feather with method of coagulation deposition and sand filtration in Chengmai Feather Factory. 文中介绍了羽绒废水处理回用工艺，对澄迈羽绒厂精洗废水采用混凝沉淀与砂过滤法进行处理。
- This filtration process was proved to be stable and economical in nearly two years operation.The optimal operation conditions of quartz sand filtration and its backwash were studied. 实验证明了陶瓷膜过滤食醋时前置石英砂预处理工序具有重要的经济价值，同时确定出石英砂过滤和反冲洗的最佳工艺条件。
- sand filtration tube- potassium dichromate 砂滤管--重铬酸钾容量法
- micro-flocculation continuous sand filtration 微絮凝连续过滤
- Water can be purified by filtration through sand. 水通过沙滤可以变清。
- The New Development of the Mold Material for Rapid Sand Casting 快速砂型铸造用模具材料的新进展
- Reformation of the Backwashing System of Rapid Sand Filter 普通快滤池反冲洗系统的改造
- Analysis of average rapid sand filter with air-water backwashing 普通快滤池气水反冲洗分析
- The sniper snapped off six rapid shots. 狙击手迅速地连放了六枪。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- Improvement of quartz sand filtration process for vinegar treatment 石英砂过滤澄清食醋工艺的改进
- He made rapid progress in his studies. 他学习上进步很快。
- Keywords bioflocculation;sand filtration;wool scoring effluent; 生物絮凝;砂滤;洗毛废水;
- His rise to power was very rapid. 他很快掌握了大权。
- Ouch! The sand is so hot! I can burn my feet. 哎哟！沙子这么烫！会烫伤脚的。
- The sand blew into the food and made it gritty. 砂吹进食物中，里边尽是砂子。
- Research on rapid sand cast of complex archetypal hull based on SL 基于SL模型的复杂壳体快速铸造的研究
