处理地表水重金属（钙、镁、铁、锰）的时候，电热板消解，但是总是有沉淀析出，问过同行，他们没有遇见过这种情况，有没有哪位遇见过这种情况？这到底是怎么回事？[img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832321329_294_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832330119_8947_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832321329_294_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832330119_8947_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832321329_294_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832330119_8947_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832321329_294_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832330119_8947_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832321329_294_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832330119_8947_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832321329_294_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832330119_8947_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832321329_294_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832330119_8947_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832321329_294_3153339_3.jpg!w690x920.jpg[/img][img=,690,920]https://ng1.17img.cn/bbsfiles/images/2020/01/202001140832330119_8947_3153339_3.jpg!w690x920.jpg[/img]