Calciferous salt is ideal coagulants which decrease the electric potential . the experiment also showed a new method to treat the coal dressing wastewater by using calcium cinder carbide and pam together 通过对各种降低动电电位的混凝剂的测试，得出钙盐是较理想的混凝剂，并确定了电石渣与聚丙烯酰胺联用治理煤泥水的最新方法。
A deep treatment pilot test was made on micropolluted source water with combined technique of o3 preoxidizing biological pretreatment - coagulant sedimentation - sand filter - o3 after oxidizing biological activated carbon ( bac ) filter 摘要利用臭氧预氧化生物预处理混凝沉淀砂滤臭氧后氧化生物活性炭滤池组合工艺对微污染水源水进行了深度处理中间试验。
Water plant coagulant dosing system is generally composed of mix subsystem that accomplishes medical mixture of needed concentration and dosing subsystem that realizes the dosage of mixed chemicals to given points in terms of requirements 给水处理厂混凝剂投药系统一般由完成需要浓度药液配兑的配液子系统和将已配制药液按需要的量投送到投加点的投加子系统组成。
This paper introduced the basic control mode of automatic control system of coagulant dosage , taking the technique of streaming current defection for example , and then the merits and demerits of each control mode and the applicability was analyzed 以流动电流检测技术为例，介绍混凝投药自动控制系统的基本控制方式，并且对各种控制方式的优缺点及适用条件作了分析。
Non - crosslinked powdered butadiene - acrylonitrile rubber with better properties could be prepared using coagulant compounded with na ( superscript + ) , mg ( superscript 2 + ) and ca ( superscript 2 + ) and insulator compounded with organic acid salt and silicone oil 采用一价钠盐、二价镁盐和二价钙盐的复合凝聚剂和有机酸盐与硅油的复合隔离剂可制得性能较好的非交联型粉末丁腈橡胶。
Abstract : this paper introduced the basic control mode of automatic control system of coagulant dosage , taking the technique of streaming current defection for example , and then the merits and demerits of each control mode and the applicability was analyzed 文摘:以流动电流检测技术为例，介绍混凝投药自动控制系统的基本控制方式，并且对各种控制方式的优缺点及适用条件作了分析。
( 2 ) feclsused as a coagulant when the water quality after filtration has tiny difference in the direct filtration process , compared with the finer sand media , the velocity increase of the water head loss of the coarser sand media is slower , and its filtration cycle is longer ( 2 )在直接过滤过程中，采用fecl _ 3作为混凝剂、出水浊度保持基本相同时，粗滤料的水头损失增长速度较慢，过滤周期比较长。 ( 3 )
Concentrations , bore flow rate , dope solution temperature , coagulant bath temperature , 5 types of composite pu hollow fiber membranes were prepared . the recovery extent of different composition hollow fiber membrane pore size is different . the ability to recover of type 另外，在pu纺丝液中混入适量醋酸纤维素( ca ) ，也可有效改善pu溶液的可纺性，提高pu中空纤维膜的支撑强度和耐压强度，但压力响应性有所减弱。
