Kodi ma active carbon filters amachotsa ndi kuchepetsa chiyani?
Malinga ndi EPA (Environmental Protection Agency ku United States), Activated Carbon ndiyo njira yokhayo yosefera yomwe ikulimbikitsidwa kuchotsa.
- zinthu zonse 32 zodetsa zachilengedwe kuphatikizapo THMs (zopangidwa kuchokera ku chlorine).
- mankhwala ophera tizilombo 14 onse omwe atchulidwa (izi zikuphatikizapo nitrates komanso mankhwala ophera tizilombo monga glyphosate omwe amatchedwanso roundup)
- mankhwala 12 ophera udzu omwe amagwiritsidwa ntchito kwambiri.
Izi ndi zinthu zodetsa ndi mankhwala ena omwe amachotsedwa ndi zosefera zamakala.
Klorini (Cl)
Madzi ambiri apampopi a anthu onse ku Europe ndi North America ali ndi malamulo ambiri, mayeso ndi ziphaso zovomerezeka kuti amwedwe. Komabe, kuti akhale otetezeka, chlorine imawonjezedwa zomwe zingapangitse kuti ikhale ndi kukoma ndi fungo loipa. Zosefera za Carbon Zogwiritsidwa Ntchito Ndizabwino Kwambiri Pochotsa chlorine ndi zina zokhudzana ndi kukoma ndi fungo loipa. Zosefera za Carbon Zogwiritsidwa Ntchito Zapamwamba zimatha kuchotsa 95% kapena kuposerapo ya chlorine yaulere.
Kuti mudziwe zambiri pa izi werengani za chlorine yonse komanso yaulere.
Chlorine sayenera kusokonezedwa ndi Chloride yomwe ndi mchere wophatikizidwa ndi sodium ndi calcium. Chloride imatha kuchuluka pang'ono madzi akasefedwa ndi mpweya wopangidwa ndi activated carbon.
Zogulitsa ziwiri za chlorine
Nkhawa yodziwika kwambiri yokhudza madzi apampopi ndi zinthu zochokera ku chlorine monga ma THM omwe amadziwika kuti ndi a khansa. Mpweya wopangidwa ndi activated ndi wothandiza kwambiri kuposa ukadaulo wina uliwonse wosefera pochotsa izi. Malinga ndi EPA, umachotsa zinthu 32 zochokera ku chlorine zomwe zimapezeka kwambiri. Chodziwika kwambiri chomwe chimayesedwa mu malipoti a madzi apampopi ndi ma THM onse.
Chloride (Cl-)
Chloride ndi mchere wachilengedwe womwe umathandiza kusunga kuchuluka kwa magazi, kuthamanga kwa magazi, ndi pH ya madzi amthupi. Komabe, Chloride yambiri m'madzi ingayambitse kukoma kwa mchere. Chloride ndi gawo lachilengedwe la madzi apampopi opanda mavuto aliwonse paumoyo. Ndi gawo la njira yopezera chlorine yakumwa madzi ochokera ku mabakiteriya ndi mavairasi owopsa. Sikuyenera kusefedwa kapena kuchotsedwa koma mpweya woyatsidwa nthawi zambiri umachepetsa chloride ndi 50-70%. Nthawi zina chloride imatha kuwonjezeka.
Mankhwala ophera tizilombo
Mankhwala ophera tizilombo ndi zinthu zomwe cholinga chake ndi kuletsa tizilombo toyambitsa matenda, kuphatikizapo udzu womwe umatha m'madzi apansi panthaka, nyanja, mitsinje, nyanja zamchere ndipo nthawi zina madzi apampopi ngakhale atachiritsidwa. Kaboni Yogwira Ntchito imayesedwa kuti ichotse mankhwala 14 ophera tizilombo odziwika bwino kuphatikizapo Chlordane, Chlordecone (CLD/Kepone), Glyphosate (Round-up), Heptachlor, ndi Lindane. Izi zikuphatikizaponso Nitrate (onani pansipa).
Mankhwala ophera udzu
Mankhwala ophera udzu omwe amadziwikanso kuti ophera udzu, ndi zinthu zomwe zimagwiritsidwa ntchito poletsa zomera zosafunikira. Kaboni Yogwira Ntchito imayesedwa kuti ichotse mankhwala 12 ophera udzu omwe amapezeka kwambiri kuphatikizapo 2,4-D ndi Atrazine.
Nitrate (NO32-)
Nitrate ndi imodzi mwa mankhwala ofunikira kwambiri pa zomera. Ndi gwero lolemera la Nayitrogeni, yomwe ndi yofunika kwambiri pakukula kwa zomera. Nitrate siidziwika kuti imavulaza akuluakulu pokhapokha ngati ili ndi kuchuluka kwakukulu. Komabe, nitrate yambiri m'madzi ingayambitse Methemoglobinemia, kapena matenda a "buluu" (kusowa kwa mpweya).
Nitrate m'madzi apampopi makamaka imachokera ku feteleza, njira zotayira madzi, ndi ntchito zosungiramo manyowa kapena kufalitsa manyowa. Mpweya woyatsidwa nthawi zambiri umachepetsa nitrate ndi 50-70% kutengera mtundu wa fyuluta.
PFOS
PFOS ndi mankhwala opangidwa omwe amagwiritsidwa ntchito mwachitsanzo thovu lozimitsa moto, zitsulo zophimba ndi zochotsa madontho. Kwa zaka zambiri yakhala ikupezeka m'malo osungira zachilengedwe ndi m'madzi akumwa ndipo yakhala ikuchitika m'madera akumpoto kwa America ndi ku Europe. Malinga ndi kafukufuku wa 2002 wa Environmental Directorate wa OECD, "PFOS ndi yokhazikika, imasonkhanitsa zinthu m'thupi komanso ndi poizoni kwa mitundu ya zinyama zoyamwitsa." Kaboni woyambitsa wapezeka kuti amachotsa bwino PFOS kuphatikizapo PFAS, PFOA ndi PFNA.
Phosphate (PO2)43-)
Phosphate, monga nitrate, ndi yofunika kwambiri pakukula kwa zomera. Phosphate ndi mankhwala amphamvu oletsa dzimbiri. Kuchuluka kwa Phosphate sikunawonetse chiopsezo chilichonse pa thanzi la anthu. Ma PWS nthawi zambiri amawonjezera ma phosphates m'madzi akumwa kuti asatuluke m'mapaipi ndi zida zina. Zosefera zamakala zabwino kwambiri nthawi zambiri zimachotsa 70-90% ya ma phosphates.
Lithiamu (Li)+)
Lithium imapezeka mwachilengedwe m'madzi akumwa. Ngakhale kuti imapezeka pamlingo wotsika kwambiri, Lithium kwenikweni ndi chinthu choletsa kupsinjika maganizo. Sichinawonetse zotsatirapo zoyipa pa thupi la munthu. Lithium imapezeka m'madzi amchere a continental, m'madzi otentha kwambiri, komanso m'madzi amchere amafuta ndi gasi. Zosefera zamakala monga TAPP Water zimachepetsa 70-90% ya chinthu ichi.
Mankhwala
Kugwiritsa ntchito mankhwala mofala kwapangitsa kuti mankhwala ndi zinthu zake zitulutsidwe mosalekeza m'madzi otayira. Zomwe zapezeka pano zikusonyeza kuti sizingatheke kuti kukhudzana ndi mankhwala ochepa kwambiri m'madzi akumwa kungayambitse zoopsa zazikulu pa thanzi la anthu, chifukwa kuchuluka kwa mankhwala omwe amapezeka m'madzi akumwa ndi kotsika kwambiri kuposa mlingo wocheperako wochiritsira. Mankhwala amatha kutulutsidwa m'madzi kuchokera ku zinyalala zochokera ku malo opangira kapena opangira zinthu osayendetsedwa bwino, makamaka omwe amagwirizana ndi mankhwala wamba. Zosefera zapamwamba za kaboni monga kuchotsa 95% ya mankhwala.
Mapulasitiki ang'onoang'ono
Mapulasitiki ang'onoang'ono ndi zotsatira za zinyalala za pulasitiki m'mitundu yosiyanasiyana. Zotsatira zenizeni za mapulasitiki ang'onoang'ono pa thanzi la anthu n'zovuta kudziwa pazifukwa zosiyanasiyana. Pali mitundu yosiyanasiyana ya mapulasitiki, komanso zowonjezera zosiyanasiyana zomwe zingakhalepo kapena sizingakhalepo. Zinyalala za pulasitiki zikalowa
M'madzi, sichimawonongeka monga momwe zinthu zachilengedwe zimachitira. M'malo mwake, kukhudzidwa ndi kuwala kwa dzuwa, momwe mpweya umagwirira ntchito, komanso kuwonongeka kwa zinthu zakuthupi monga mafunde ndi mchenga zimapangitsa kuti zinyalala za pulasitiki zisweke kukhala zidutswa zing'onozing'ono. Mapulasitiki ang'onoang'ono kwambiri omwe apezeka m'malipoti a anthu onse ndi 2.6 micron. Chotchinga cha kaboni cha 2 micron monga chimachotsa mapulasitiki onse akuluakulu kuposa 2-micron.
Ndife ogulitsa akuluakulu ku China, ngati mukufuna mtengo kapena zambiri, tikukulandirani kuti mulankhule nafe pa:
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