1.雙級反滲透：

      原水(shui)(shui)（自來水(shui)(shui)、地表水(shui)(shui)、地下水(shui)(shui)）加(jia)壓送至預處理系統(tong)(tong)(tong)粗過濾，再(zai)進入精(jing)密過濾器過濾后，通(tong)過一(yi)級高(gao)壓泵加(jia)壓送至一(yi)級反(fan)(fan)滲(shen)透系統(tong)(tong)(tong)，該(gai)系統(tong)(tong)(tong)產出(chu)的水(shui)(shui)再(zai)由二級高(gao)壓泵加(jia)壓送至二級反(fan)(fan)滲(shen)透系統(tong)(tong)(tong)，生(sheng)產出(chu)產品(pin)水(shui)(shui)，稱為雙(shuang)級反(fan)(fan)滲(shen)透。

2.工藝流程圖：

      雙級反滲透(tou)，適合電導(dao)(dao)率大于(yu)500μs/cm的水(shui)質(zhi)，出水(shui)電導(dao)(dao)率1-10μs/cm。