Starch-acrylamide graft copolymer-emulsion polymerization application

[Application] Guo Ling and Jin Zhihao prepared starch-acrylamide graft copolymer by ⁶⁰ Coγ-ray pre-irradiation method, and selected starch acrylamide copolymer FSM (grafting rate 75%) and polyacrylamide (PAM) as the The flocculant treats raw water from a sewage treatment plant in Shanghai.

Table 3-37 Test results of FSM and PAM treatment of domestic sewage raw water

The following conclusions can be drawn from the test data in Table 3-37: ①The treatment effect of the former is better than the latter at the same dose of FSM and PAM.

Table 3-38 Test results of starch-acrylamide graft copolymer and PAM treatment of domestic sewage raw water

The following conclusions are drawn: ① The treatment effect of the former is better than the latter at the same dose of FSM and MFSM.

The use of starch acrylamide grafts for oil recovery has long been reported.

Li Shuhong et al.

Chang Wenyue and Han Xue used cerium ammonium nitrate/nitric acid as the initiation system to prepare starch acrylamide graft copolymer, and used the prepared copolymer and non-ionic polyacrylamide (relative molecular weight 3 million) to treat oily For wastewater, milk wastewater, papermaking wastewater, printing and dyeing wastewater and electrophoresis dyeing wastewater, the test results are shown in Table 3-39

Table 3-39 Treatment effect of starch-acrylamide graft copolymer on several kinds of wastewater