Bayani game da ruwa mai ruwa, tsarin sarrafa ruwa na ƙasa 　　Ruwan rami, ruwan karkashin kasa yana nufin ruwan da aka binne a ƙarƙashin ƙasa, wanda zai iya gudana a cikin dutse da ƙasa. Yayin da tsarin masana'antu ke ci gaba da hanzarta, gurɓataccen muhalli yana ƙaruwa, kuma ruwan ƙasa yana gurɓataccen yanayi. Daga matakin gurɓataccen yanayi, gurɓataccen birni na arewa yawanci yana da nauyi fiye da biranen kudanci, gurɓataccen abu da yawa kuma yawan ƙimar da aka wuce, musamman a yankin Arewacin China, gurɓataccen yanayi ya fi girma. Daga hangen nesa na gurɓataccen abu, "nitrogen uku" gurɓataccen abu ya fi girma a duk faɗin ƙasar, kuma yawanci ya sha wahala; Mining da jimlar tauri gurɓataccen yafi rarraba a Arewa maso gabas, Arewa maso yammacin China, Arewa maso yammacin da kudu maso yammacin yankuna; Gurbataccen baƙin ƙarfe da manganese ya fi yawa a yankunan kudanci. Well ruwa, kasa ruwa sarrafawa tsari Well ruwa, karkashin kasa ruwa sarrafawa ne galibi don cire iron manganese, ammonia nitrogen, lakar yashi, da kuma sauran abubuwa masu cutarwa, don haka da ingancin ruwa da aka sarrafa ya kai ƙasa ruwa sha ka'idodin. A halin yanzu, ruwan da aka yi amfani da shi, ruwan da aka yi amfani da shi shine kawar da baƙin ƙarfe, manganese, saboda a kasarmu, baƙin ƙarfe a cikin ruwan da aka yi amfani da shi ya fi yawa, kawar da baƙin ƙarfe ya fi yawa ta amfani da iska da tacewa, tacewa don tacewa yawanci ta amfani da quartz yashi, manganese yashi, daga baya ta hanyar aikin carbon da madaidaiciyar tacewa don tacewa, bayan sarrafawa, ingancin ruwa zai iya kai ƙasar ƙasar ruwan Ammonia nitrogen ne mafi yawa ta amfani da ultra tacewa ko reverse osmosis tacewa tsari, lakar yashi da sand za a iya amfani da multi-kafofin watsa labarai tacewa da kuma ion musayar softening na'urar tacewa.