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硫酸铁属于弱酸性聚合物药剂,在废水除磷处理时,工业葡萄糖在混凝土工程中用减水剂和缓凝剂。其减水、增塑、缓凝作用都很显着,能够大大前进混凝土的和易性,减少坍落度丢失,前进混凝土的后期强
度,作为缓凝剂可使初凝时间从几小时延伸到几天而无损强度。并且适用范围广,泵送混凝土、大流动性混凝土、大体积混凝土、高强度功能混凝土中均可使用。
葡萄糖粉能够作水泥掺合剂:水泥中添加必定数量葡萄糖粉后,可添加混凝土的可塑性和强度,且有阻滞作用,即推迟混凝土的开始与终究凝聚时期,例如添加0.15%的葡萄糖酸钠,可将混凝土的初凝聚时间延伸10倍以上,也就是将混凝土的可塑时间从几小时延伸至几天,而不影响其牢度。Industrial glucose is used as water reducer and retarder in concrete engineering. Its water reducing, plasticizing and retarding effects are remarkable. It can greatly advance the workability of concrete, reduce the loss of slump and the late strength of forward concrete. As a retarder, the initial setting time can be extended from several hours to several days without damaging the strength. It can be used in pumping concrete, high fluidity concrete, mass concrete and high strength functional concrete.
Glucose powder can be used as cement admixture: When a certain amount of glucose powder is added to the cement, the plasticity and strength of concrete can be added, which can retard the beginning and final condensation period of concrete. For example, adding 0.15% sodium gluconate can extend the initial condensation time of concrete by more than 10 times, that is to say, it can delay the beginning and final condensation period of concrete. The plasticity time of concrete is extended from several hours to several days without affecting its fastness.
水泥中添加必定数量葡萄糖粉后,可添加混凝土的可塑性和强度,且有阻滞作用,即推迟混凝土的开始与终究凝聚时期,例如添加0.15%的葡萄糖粉,可将混凝土的初凝聚时间延伸10倍以上,也就是将混凝土的可塑时间从几小时延伸至几天,而不影响其牢度。可塑性与推迟开始凝聚时间在混凝土作业中是非常重要的问题,如在高温度季节施工及大型的工程作业中,推迟开始凝聚时间则是个难题,葡萄糖粉可圆满解决这个问题。别的高温时胶接油井是比较困难的,添加了葡萄糖粉后的混凝土在170℃高温下,在几个小时内可塑,因此也能圆满解决上述问题。因此葡萄糖粉作为水泥掺合剂在国外已许多使用于重要的建筑工程,如中东的许多桥梁工程中。但是我们国内在这方面使用也还未太广泛,据说有在造纸废水中提炼纤维素磺酸钠,其作用与葡萄糖粉根本是不可相提并论的。The plasticity and strength of concrete can be added after adding a certain amount of glucose powder to cement, which has a retarding effect. That is to say, delaying the beginning and final cohesion period of concrete, such as adding 0.15% glucose powder, can extend the initial cohesion time of concrete by more than 10 times, that is to say, delaying the plasticity time of concrete from several hours. Extend to a few days without affecting its fastness. Plasticity and delaying the start of condensation time are very important problems in concrete work. For example, in high temperature season construction and large-scale engineering work, delaying the start of condensation time is a difficult problem, and glucose powder can solve this problem satisfactorily. It is difficult to bond oil wells at other high temperatures. The concrete added with glucose powder can be plastic in a few hours at 170 C, so it can solve the above problems satisfactorily. Therefore, as a cement admixture, glucose powder has been used in many important construction projects abroad, such as many bridges in the Middle East. However, the use of sodium cellulose sulfonate in this field is not very extensive in our country. It is said that sodium cellulose sulfonate is extracted from papermaking wastewater, and its effect is not comparable to that of glucose powder.
五、过多正电荷金属沉积物吸附在菌胶团表面,减弱了胞外多糖的作用,使菌胶团絮凝性减弱,导致活性污泥絮团细小,不利于后期的压泥;
六、污泥量增大,在废水除磷处理中,当聚合硫酸铁投加量太大时则会出现产泥量过高,这也是聚合硫酸铁相对于微生物处理法应用于废水除磷处理中的弊端,投加过量会使水中的金属磷酸盐更多,形成更多的污泥。
对于现在聚合硫酸铁产品的用量,是需要通过小试得出比较合适的投加量,如果水质发生变化的话,就需要重新做小试俩确定投加量,这样避免聚合硫酸铁投加量过多而影响处理效果,河南安家净环保是一家专业从事聚合硫酸铁生产销售的厂家,欢迎前来咨询合作。