CAJ | 학술논문

研究了趋零排放的敞开式循环冷却水离子交换微碱化处理工艺。小试和中试结果表明，铁质换热器选用强酸RNa型与强碱RHCO3型树脂串联工艺，黄铜换热器选用弱酸RH型、强酸RH型及弱碱ROH树脂串联，末端加入NaOH的处理工艺进行补水。可实现敞开式循环冷却水系统稳定运行和趋零排放，钙镁离子等结垢阳离子，氯根等加速金属腐蚀的阴离子被清除，系统中水质pH和碱度均可控， pH为8.0~9.5之间，碱度为6.0~12.0 mmol/L之间，可延缓金属腐蚀。
연구료추령배방적창개식순배냉각수리자교환미감화처리공예。소시화중시결과표명，철질환열기선용강산RNa형여강감RHCO3형수지천련공예，황동환열기선용약산RH형、강산RH형급약감ROH수지천련，말단가입NaOH적처리공예진행보수。가실현창개식순배냉각수계통은정운행화추령배방，개미리자등결구양리자，록근등가속금속부식적음리자피청제，계통중수질pH화감도균가공， pH위8.0~9.5지간，감도위6.0~12.0 mmol/L지간，가연완금속부식。
The process of the recirculating cooling water micro-alkalizing by ion-exchange resin was studied, which can approach zero discharge of waste water. The bench test and the pilot result indicated that, the heat exchanger made out of iron used the series connection process between RNa resin and RHCO3 resin with the makeup water treating. And the heat exchanger containing copper used the series connection process among RH weak acidic resin, RH strong acerbic resin and ROH weak anionic resin, with NaOH added in the outlet to adjust the alkalinity. The recirculating cooling water system kept stable and approach zero discharge of waste water in the process, at the same time, the scaling cation and the anion, such as chloride ion, had been removed, the pH and alkalinity can be adjusted precisely. The metal corrosion can be restrained when the pH was between 8. 0 and 9. 5 , the alkalinity was between 6 mmol/L and 12. 0 mmol/L.