He wāhanga nui te maimoatanga wai mō te tiaki taiao me te hauora tūmatanui, ā, ko tōna kaupapa he whakarite i te kounga haumaru o te wai me te whakatutuki i ngā hiahia o ngā momo tono. I roto i ngā tikanga maimoatanga wai maha,pūhaumāota polyaluminium(PAC) e whiriwhiria whānuitia ana mō ōna āhuatanga ahurei me te pānga pai o te whakapūkara toto.
Pānga totoka whai hua: He tino pai te mahi totoka a te PAC, ā, ka taea e ia te tango i ngā poke pēnei i ngā totoka i whakatārewatia, ngā korori me ngā mea waro kore e rewa i roto i te wai, me te whakapai ake i te kounga o te wai.
Ko te tikanga o te polyaluminium chloride (PAC) hei whakapūmau ko te kōpeketanga o te paparanga hiko takirua, te whakakore i te utu me te hopu kupenga. Ko te kōpeketanga o te paparanga hiko takirua ko te tikanga i muri i te tāpiri i te PAC ki te wai, ka hangaia e ngā katote konumohe me ngā katote pūhaumāota he paparanga mimiti ki runga i te mata o ngā matūriki kōrori, ka kōpeketia te paparanga hiko takirua ki runga i te mata o ngā matūriki kōrori, ka meinga kia kore e pumau, kia whakapūmau; ko te piriti mimiti ko te mea e kukume ana ngā kationa i roto i ngā ngota PAC tetahi ki tetahi, ā, ko ngā utu kino i runga i te mata o ngā matūriki kōrori, ka hanga he hanganga "piriti" hei hono i ngā matūriki kōrori maha; ko te pānga kupenga ko te pānga mimiti me te piriti o ngā ngota PAC me ngā matūriki kōrori, e hono ana i ngā matūriki kōrori. Ka mau i roto i te whatunga o ngā ngota whakapūmau.
Ngā whakamahinga o te maimoatanga wai polyaluminum chloride
Ki te whakatauritea ki ngā mea whakapūkara kore-ora, kua tino pai ake te pānga tango tae o ngā tae. Ko tōna tikanga mahi he taea e te PAC te whakatairanga i ngā ngota tae kia hanga he ngārara pai mā te pēhi, te whakakore rānei i te paparanga hiko takirua.
Ina whakamahia ngātahitia te PAM me te PAC, ka taea e ngā ngota polymer rauropi anionic te whakamahi i te pānga piriti o ō rātou mekameka ngota roa hei whakaputa i ngā flocs matotoru ake me te mahi tahi a te kaihoko whakararuraru. Mā tēnei tukanga ka āwhina i te whakapai ake i te pānga taunga, ā, ka māmā ake te tango i ngā katote konganuku taumaha. Hei tāpiri, ko te maha o ngā rōpū amide kei roto i ngā mekameka taha o ngā ngota polyacrylamide anionic ka taea te hanga hononga katote me te -SON i roto i ngā ngota tae. Mā te hanganga o tēnei hononga matū ka whakaiti i te wairewa o te flocculant rauropi ki te wai, ā, ka whakatairanga i te hanganga tere me te maturuturu o ngā flocs. Mā tēnei tikanga here hohonu ka uaua ake te mawhiti o ngā katote konganuku taumaha, ka whakapai ake i te whai huatanga me te pānga o te maimoatanga.
Mō te tango i te whākawa, kāore e taea te wareware i te whai huatanga o te polyaluminium chloride. Ina tāpirihia ki te wai para kei roto te whākawa, ka taea te waikura hei whakaputa i ngā iona konganuku konumohe trivalent. Ka herea tēnei iona ki ngā phosphate wairewa i roto i te wai para, ka huri i ēnei hei putunga phosphate kore wairewa. Mā tēnei tukanga hurihanga ka tangohia ngā iona phosphate mai i te wai para, ā, ka whakaitihia te pānga kino o te whākawa ki ngā wai.
Haunga te tauhohenga tika ki te phosphate, he mahi nui anō hoki tā te pānga whakapūmau o te polyaluminum chloride i roto i te tukanga tango phosphorus. Ka taea e ia te whakatutuki i te mimiti me te hononga mā te pēhi i te paparanga utu i runga i te mata o ngā katote phosphate. Mā tēnei tukanga ka tere te whakapūmau o ngā phosphate me ētahi atu poke rauropi i roto i te wai para hei puranga, ka hanga he putunga e ngāwari ana te tau.
He mea nui ake, mō ngā matūriki iri i hangaia i muri i te tāpiri i te kaihoko tango whākawa, ka whakamahia e te PAC tana tikanga hopu kupenga ahurei me te pānga whakakore utu kaha hei whakatairanga i te tipu haere me te matotoru o ēnei matūriki iri, kātahi ka whakapūmau, ka whakakotahi, ka rere ki roto i ngā matūriki nunui. Kātahi ka tau ēnei matūriki ki te paparanga o raro, ā, mā te wehenga totoka-wai, ka taea te tuku i te wai i runga ake, kia tutuki ai te tango whākawa whai hua. Mā tēnei raupapa o ngā tukanga ā-tinana me te matū matatini ka whakarite i te whai huatanga me te pumau o te maimoatanga wai para, ka whakarato i te taurangi pakari mō te tiaki taiao me te whakamahi anō i ngā rauemi wai.
Wā tuku: Hurae-10-2024