无磷无氮型阻垢剂PESA-g-PAA/AHPS阻垢缓蚀性能  

Research on the scale and corrosion inhibition performance of PESA-g-PAA/AHPS as a biodegradable stabilizer without phosphorus and nitrogen

作　　者：房婉玉 彭凌 陈东升[1] 田远松 沙亚东[1] 魏无际[1] Fang Wanyu;Peng Ling;Chen Dongsheng;Tian Yuansong;Sha Yadong;Wei Wuji(School of Environmental Science and Engineering,Nanjing Tech University,Nanjing 210009,China)

机构地区：[1]南京工业大学环境科学与工程学院,江苏南京210009

出　　处：《工业水处理》2020年第8期80-83,共4页Industrial Water Treatment

摘　　要：研究了聚环氧琥珀酸接枝聚丙烯酸/烯丙氧基羟丙基磺酸钠(PESA-g-PAA/AHPS)对CaCO3、CaSO4、Ca3(PO4)2的静态阻垢性能、稳定锌盐性能、缓蚀性能和生物降解性能。结果表明,投加量为10 mg/L时,PESA-gPAA/AHPS对CaCO3和CaSO4的阻垢率分别达到99.6%、99.8%;投加量为50 mg/L时,PESA-g-PAA/AHPS对Ca3(PO4)2的阻垢率、锌盐稳定率、Q235碳钢的缓蚀率分别为93.7%、91.1%、66.2%,性能较未改性的PESA大幅提高。PESA-gPAA/AHPS保持了PESA的可生物降解性,28 d的生物降解率达到71.6%。PESA-g-PAA/AHPS是一种综合性能良好的绿色阻垢剂。The static scale inhibition performance against CaCO3,CaSO4,and Ca3(PO4)2 scale,and zinc salt stabilization,corrosion inhibition and biodegradability of PESA-g-PAA/AHPS were researched. The results showed that,the CaCO3 and CaSO4 scale inhibition rate of PESA-g-PAA/AHPS reaches 99.6% and 99.8% respectively at the dosage of 10 mg/L. The Ca3(PO4)2 scale inhibition rate,the zinc salt stabilization rate and the corrosion inhibition rate of PESA-g-PAA/AHPS reach 93.7%,91.1%,and 66.2% respectively at the dosage of 50 mg/L. The performance of PESA-g-PAA/AHPS was much better than that of unmodified PESA. PESA-g-PAA/AHPS maintained its biodegradability similar to PESA,with the biodegradation rate of 71.6% at 28 days. PESA-g-PAA/AHPS is a green scale inhibitor with good comprehensive properties.

关 键 词：绿色阻垢剂 聚环氧琥珀酸 复配 阻垢 缓蚀 生物降解 

分 类 号：TQ085[化学工程]