聚合硫酸铁的制备与应用

Preparation and application of polyferric sulfate

目前,我国正面临着严峻的水环境问题,而最主要的水环境问题是水体的污染。要做好水处理工作,选择合适的混凝剂是净水技术中的首要环节。本实验采用催化氧化法,在酸性条件下,以七水合硫酸亚铁为原料,用NaNO_2作为催化剂,以氧气作为氧化剂的方法,制备净水剂聚合硫酸铁,考察了反应时间,反应温度和浓硫酸投加量对制备聚合硫酸铁的影响,并研究了此法所制备的聚合硫酸铁用于市政污水的处理效果。

At present, our country is facing the severe water environment problems, most of the water environment problem is the pollution of water. Choosing appropriate coagulants is the most important water purification technology link to make the water processing. In this experiment, we used seven hydration ferrous sulfate as raw materials, NANO_2 as catalyst, oxygen as oxidant to preparation poly ferric sulphate in a catalytic oxidation way and in acid conditions, and investigated the reaction time, reaction temperature and the concentrated sulfiuic acid dosing quantity on the preparation of the influence ofpoly ferric sulphate, and we studied the effect to treat municipal sewage using the poly ferric sulphate we made.