Nā pono o ka polyaluminum chloride kiʻekiʻe i ka mālama ʻana i ka wai hoʻoneoneo

Me ka wikiwiki o ka ʻoihana ʻoihana, ua lilo ka hoʻokuʻu ʻana o ka wai ʻino i mea nui i ka palekana o ke kaiapuni honua. Aia ke kikowaena o ka mālama ʻana i ka wai ʻino i ke koho ʻana a me ka hoʻohana ʻana inā mea hoʻoheheʻe waii ke kaʻina hana hoʻomaʻemaʻe. I nā makahiki i hala iho nei, ʻo ka polyaluminum chloride (PAC) kiʻekiʻe-kūpono, ma ke ʻano he flocculant koʻikoʻi, ua lilo mālie i "huahana hōkū" i ka ʻoihana mālama wai ʻino ma muli o kāna hana maikaʻi loa a me nā manaʻolana noi ākea.

ʻO ka Polyaluminum chloride kahi hui polymer inorganic me ka hopena flocculation ikaika. Loaʻa ia ma o ka hopena polymerization o ka alumini chloride a me ka alumini hydroxide ma lalo o nā kūlana kikoʻī. Ke hoʻohālikelike ʻia me nā flocculants paʻakai alumini kuʻuna (e like me ka alumini sulfate, ka coagulant paʻakai alumini, a pēlā aku), ʻoi aku ka ikaika o ka polyaluminum chloride kiʻekiʻe e wehe i nā mea haumia, ʻoiai ke hana nei me ka turbidity kiʻekiʻe a me ka haumia aila kaumaha. He mea kupaianaha ka hana i ka wā e pili ana i ka maikaʻi o ka wai. Ua hoʻohana nui ʻia ma nā ʻano he nui e like me ka mālama ʻana i ka wai ʻino o ke kūlanakauhale, ka mālama ʻana i ka wai ʻino o nā ʻoihana, a me ka mālama ʻana i ka wai ʻino o ka home.

Nā pono o ka polyaluminum chloride kiʻekiʻe

1. He mea kupaianaha ka hopena flocculation

Hiki i ka polyaluminum chloride kiʻekiʻe ke hana koke i kahi nui o nā flocs maikaʻi i loko o ka wai, no laila e hoʻopili pono ana i nā mea paʻa i hoʻokuʻu ʻia, nā mea colloidal a me nā microorganism i loko o ka wai. Hiki iā ia ke hoʻopili koke a wehe i nā ʻāpana i hoʻokuʻu ʻia, ka momona, nā ion metala kaumaha a me nā mea haumia ʻē aʻe i loko o ka wai. ʻOi loa aku ka hopena ma mua o nā flocculants paʻakai alumini kuʻuna. I ka mālama ʻana i ka wai ʻino, hiki i ka polyaluminum chloride kiʻekiʻe ke hoʻonui i ka wikiwiki o ka hoʻonohonoho ʻana o ka pahu sedimentation i ka manawa pōkole, no laila e hoʻopōkole nui ai i ke kaʻina hana mālama wai ʻino.

2.Wide laulā o ka noi

ʻO ka polyaluminium chloride kiʻekiʻe-kūponohiki ke hoʻololi i nā ʻano kūlana wai like ʻole, me ka wai turbidity kiʻekiʻe, ka wai ʻaila kiʻekiʻe, ka wai i loaʻa nā metala kaumaha, a me ka wai turbidity haʻahaʻa haʻahaʻa haʻahaʻa, e hōʻike ana i ka hiki ke hoʻololi ikaika. Hiki iā ia ke wehe pono i ka hapa nui o nā mea paʻa i hoʻokuʻu ʻia a me nā mea haumia i loko o ka wai, a hiki ke hoʻohana nui ʻia i ka mālama ʻana i ka wai ma nā ʻano like ʻole e like me ka hoʻokele kūlanakauhale, ka ʻoihana, a me ka hana mining. No ka laʻana, i ka mālama ʻana i ka wai kūloko, ka wai hoʻoheheʻe pulp mill, ka wai hoʻoheheʻe metallurgical, ka wai hoʻoheheʻe ʻoihana meaʻai a me nā hiʻohiʻona ʻē aʻe, hiki i ka polyaluminum chloride kiʻekiʻe ke hoʻokō i nā hopena mālama maikaʻi loa.

3. Haʻahaʻa ka nui, kiʻekiʻe ka pono a me ka mālama ʻana i ka ikehu

Ua hoʻolālā ʻia ka polyaluminium chloride kiʻekiʻe-kūpono e hoʻokō i ka liʻiliʻi o ka dosage a me ka hopena flocculation maikaʻi aʻe. ʻO ka dosage no ka turbidity haʻahaʻa he 25-40% o ka alumini sulfate, a ʻo ka dosage no ka turbidity kiʻekiʻe he 10-25% o ka alumini sulfate. ʻAʻole kēia e hōʻemi wale i ke kumukūʻai o ka hoʻohana ʻana i nā kemika, akā e hōʻemi pū i ka hoʻohana ʻana i ka ikehu a me ka sludge i ke kaʻina hana mālama wai ʻino. Ma muli o kona koena alumini haʻahaʻa, hōʻemi ia i ka haumia lua o nā kino wai a hōʻemi nui i ke kumukūʻai holoʻokoʻa o ka mālama ʻana i ka wai ʻino. No laila, ua lilo ia i mea hana koʻikoʻi e mālama i nā kumukūʻai a hoʻomaikaʻi i ka pono i nā noi hana.

4. Aloha i ke kaiapuni

ʻO ka hoʻohana ʻana i ka polyaluminium chloride kiʻekiʻe ka hopena liʻiliʻi i ke kaiapuni a me ke koena alumini haʻahaʻa. Ke hoʻohālikelike ʻia me nā flocculants kemika ʻē aʻe, ʻoi aku ka palekana o ka polyaluminium chloride a he hopena liʻiliʻi i ka pH a me TA o ka effluent, no laila ua emi ka noi no nā kemika e hoʻoponopono i ka pH a me TA. ʻOi loa i nā papahana mālama wai nui a me ka palekana kaiapuni, ua lilo ia i koho ʻōmaʻomaʻo a ʻoi aku ka launa pū me ke kaiapuni.

5. Kūpono no ka mālama ʻana i ka wai wela haʻahaʻa a me ke kiʻekiʻe turbidity

He pilikia maʻamau ka mālama ʻana i ka wai i nā kau haʻahaʻa. ʻOi loa i ka hoʻoilo anuanu, e hoʻemi nui ʻia ka pono o nā flocculants kuʻuna he nui. Eia nō naʻe, hiki i ka polyaluminum chloride kiʻekiʻe ke hoʻomau i ka mālama ʻana i ka hopena flocculation kiʻekiʻe ma lalo o nā kūlana haʻahaʻa. Eia kekahi, i ka wā e kiʻekiʻe ai ka turbidity o ka wai, hōʻike pū ka PAC i nā hiki ke hana ikaika a hiki ke wehe pono i nā ʻāpana i hoʻokuʻu ʻia a me nā mea colloidal i loko o ka wai. No ka wai me ka haumia ʻaila kaumaha, loaʻa i ka polyaluminum chloride kiʻekiʻe kahi hopena degreasing maikaʻi loa.

6. Hoʻololi i nā pae waiwai pH like ʻole

Loaʻa i ka polyaluminium chloride kiʻekiʻe ka hiki ke hoʻololi ikaika i nā loli o ka pH wai a hiki ke hana pono i kahi pae pH ākea. Ma ke ʻano laulā, hiki i ka PAC ke mālama i ka hopena flocculation maikaʻi i ka wai me ka waiwai pH haʻahaʻa (acidic) a kiʻekiʻe paha (alkaline), kahi e hoʻonui hou ai i kona hiki ke hoʻohana ʻia ma lalo o nā kūlana maikaʻi wai like ʻole. 5.0-9.0 vs 5.5-7.5

7. Hoʻomaikaʻi i ka pono o ka sedimentation a hōʻemi i ka nui o ka sludge

Kōkua ka polyaluminum chloride kiʻekiʻe-kūpono i ka hoʻolalelale ʻana i ka noho ʻana o nā ʻāpana paʻa i loko o ka wai ʻino a hoʻomaikaʻi i ka pono hana o ka pahu sedimentation ma ka hoʻomaikaʻi ʻana i ka density a me ka settleability o nā flocs. Eia kekahi, ma muli o ke kiʻekiʻe o ka polymerization o ka polyaluminum chloride kiʻekiʻe-kūpono, ʻoi aku ka paʻa o nā flocs i hana ʻia a noho wikiwiki, no laila e hōʻemi ana i ka nui o ka sludge i hana ʻia. He mea nui kēia no ka mālama ʻana a me ka hoʻolei ʻana i ka sludge ma hope, a hiki ke hōʻemi i ke kumukūʻai a me ka paʻakikī o ka mālama ʻana i ka sludge.

Nā hiʻohiʻona noi o ka polyaluminum chloride kiʻekiʻe i ka mālama ʻana i ka wai hoʻoneoneo

1. Ka mālama ʻana i ka wai ʻino o ke kūlanakauhale

Ma ke kahua o ka mālama ʻana i ka wai ʻino o ke kūlanakauhale, hiki ke hoʻohana nui ʻia ka polyaluminum chloride kiʻekiʻe i nā pae mālama mua a me ka lua o nā mea kanu wai. Hiki iā ia ke wehe pono i nā mea paʻa i hoʻokuʻu ʻia, nā mea colloidal, nā bacteria a me nā microorganism ʻē aʻe i loko o ka wai, hoʻomaikaʻi i ka maikaʻi o ka wai, a hāʻawi i kahi kumu wai kiʻekiʻe no ka mālama olaola ma hope. Ua lilo ʻo PAC i hoʻokahi o nā flocculants nui i nā mea kanu mālama wai ʻino ma nā kūlanakauhale he nui ma ka home a ma waho.

2. Ka mālama ʻana i ka wai hoʻoneoneo ʻoihana

Ma ke kahua o ka mālama ʻana i ka wai ʻino ʻoihana, hoʻohana nui ʻia ka polyaluminum chloride kiʻekiʻe. Loaʻa iā ia ka hopena mālama maikaʻi i ka wai ʻino ʻoihana mai ka paʻi ʻana a me ka hoʻoluʻu ʻana, ka hana pepa, ka ʻili, ka electroplating a me nā ʻoihana ʻē aʻe, a hiki ke wehe pono i nā mea haumia e like me ke kala, COD a me BOD. No ka laʻana, ma ka metallurgy, ka mana uila, ka ʻoihana kemika, ka hana pepa, ka hana ʻana i ka meaʻai a me nā ʻoihana ʻē aʻe, hiki i ka PAC ke kōkua i ka wehe ʻana i nā metala kaumaha, nā ʻōpala aila, nā ʻāpana i hoʻokuʻu ʻia a me nā mea haumia ʻē aʻe i loko o ka wai. ʻOi loa i ka wā e mālama ai i ka wai ʻino ʻaila, ua hōʻike ʻo PAC i kona hiki ke wehe ʻaila maikaʻi loa a hiki ke hōʻemi nui i ka ʻike aila o nā kino wai.

3. Ka mālama ʻana i ka wai ʻino mai ka hana ʻeli ʻana

Ma ke kahua o ka mālama ʻana i ka wai ʻino mai ka mining, hiki i ka polyaluminum chloride kiʻekiʻe ke hoʻoneʻe pono i nā minelala, ka lepo a me nā mea ʻē aʻe i hoʻokuʻu ʻia i loko o ka wai, e hāʻawi ana i ke kākoʻo no ka hana hou ʻana o ka wai a me ka hoʻihoʻi ʻana i ke kaiapuni ma nā wahi mining. ʻOiai he paʻakikī ke ʻano o ka wai ma nā wahi mining a he nui ka nui o nā mea paʻa i hoʻokuʻu ʻia a me nā metala kaumaha, ʻo ka pono kiʻekiʻe o ka polyaluminum chloride kiʻekiʻe he mea koʻikoʻi loa ia i kēia ʻano mālama ʻana i ka wai ʻino.

Laulaha,polyaluminum chloride kiʻekiʻe-ka pono, ma ke ʻano he flocculant maikaʻi loa no ka mālama ʻana i ka wai ʻino, he mau pono loea a me ke kaiapuni koʻikoʻi. ʻOi loa aku i ke ʻano o ka turbidity kiʻekiʻe, ka maikaʻi o ka wai paʻakikī, a me ka haumia aila kaumaha, hiki iā ia ke hoʻokō i nā hopena mālama maikaʻi loa.