Tekanyetso ea naha ea Chaena bakeng sa polyaluminium chloride ke GBT22627-2022

I. Semelo se Tloaelehileng le Boemo

1. Ho lokollwa le ho kenngwa tshebetsong

E ntshitswe ke Tsamaiso ya Naha bakeng sa Taolo ya Mmaraka ka la 9 Hlakubele, 2022 mme ya kenngwa tshebetsong semmuso ka la 1 Mphalane, 2022, e nkela mofuta wa kgale wa GB/T 22627-2014 sebaka.

E loketse bakeng sa Metsi a Liindasteri phepelo, metsi a litšila, likhoerekhoere le lihlahisoa tsa polyaluminum chloride (PAC) kalafo ea seretse.

2. Lipakane tse tloaelehileng

Re tla kopanya litlhoko tsa boleng ba sehlahisoa, re matlafatse matšoao a polokeho a kang litšepe tse boima le likokoana-hloko, 'me re khothaletse ho etsa hore Kalafo ea Metsi indasteri.

Ⅱ. Litlhoko tsa motheo tsa tekheniki

Tlhophiso ea lihlahisoa le ponahalo

Mokelikeli: o se nang 'mala ho isa ho bosehla bo sootho bo bonaletsang; o tiileng: o mosweu ho isa ho o mosehla o sootho dikarolwana/phofo, ha o na makukuno, ha o na monko.

Matšoao a bohlokoa a tshebetso

Kenya le ho lokisa litsupa

Eketsa: bongata (metsi), lintho tsa teko ea naetrojene ea ammonia; matlafatsa: moeli oa tšepe e boima (arsenic, loto, cadmium, jj.). Tlhaloso ea thepa e tala: tlhahiso ea hydrochloric acid e lokela ho latela maemo a indasteri a GB/T 320, haeba ho sebelisoa litšila tse kotsi, tumello ea tikoloho ea hlokahala. Eketsa: bongata (metsi), lintho tsa teko ea naetrojene ea ammonia; matlafatsa: moeli oa tšepe e boima (arsenic, loto, cadmium, jj.). Tlhaloso ea thepa e tala: tlhahiso ea hydrochloric acid e lokela ho latela maemo a indasteri a GB/T 320, haeba ho sebelisoa litšila tse kotsi, tumello ea tikoloho e lokela ho fumanoa.

Mokhoa oa Ⅲ.Testing le tiisetso ea boleng

1.Tlhobollo ea tšebelisano-'moho ea mekhoa e mengata

Boleng ba alumina: titration; letsoai: spectrophotometry; litšepe tse boima: spectrometry ea ho monya liathomo.

Lenane la sehlahisoa sa mokelikeli le tla baloa ho latela boleng bo lekanyelitsoeng ba dikahare tsa Al₂O₃ ≥ 10%.

2.Tsamaiso ea taolo ea boleng

Likhoebo li hloka ho etsa tlhahlobo ea fektheri (alumina, tekanyo ea motheo oa letsoai, pH, jj.) le tlhahlobo e felletseng ea kamehla.

Ⅳ.Litlhaloso tsa ho paka, polokelo le lipalangoang le polokeho

1. tlhoko ea ho paka

Metsi: ho kwala ka moqomo wa polyethylene; se tiileng: sephutheloana se habeli (filimi ya ka hare ya polyethylene + mokotla o ka ntle), se bontshang lebitso la sehlahiswa, mohlala le letsatsi la tlhahiso.

2. Maemo a polokelo le a lipalangoang

Boloka hole le leseli, moea o kenang, tikoloho e omileng, hole le mohloli oa mollo; nako ea ho boloka metsi ke likhoeli tse 3, e tiileng ke likhoeli tse 12.

Ⅴ. Phapang ho latela maemo a metsi a nooang

• Sebaka sa ts'ebeliso: GB/T 22627-2022 ke bakeng sa kalafo ea metsi a indasteri, ha metsi a nooang a lapeng a tlas'a GB 15892-2020 e thata haholoanyane (mohlala, moeli oa arsenic ≤0001%).
• Phapang ea matšoao: Sekhahla sa Al₂O₃ ea sehlopha sa indasteri (≥28%) se tlase ho feta sa sehlopha sa metsi a nooang (≥29%), 'me moeli oa litšepe tse boima o phutholohile haholoanyane.

Vi. Bohlokoa ba ho kenngwa tshebetsong ha maemo

1. Ntlafatso ea indasteri

Felisa bokgoni ba tlhahiso bo sa sebetseng hantle, kgothaletsa ntshetsopele ya theknoloji ya PAC e sebetsang hantle le e sireletsang tikoloho.

2. Netefatso ea boleng ba metsi

Laola lintho tse kotsi ka tieo ho fokotsa kotsi ea tšilafalo ea bobeli.

3. Maemo a 'maraka

Hanela lihlahisoa tse mpe 'me u sireletse litokelo le lithahasello tsa basebelisi ba ka tlase ho tsona.

GB/T 22627-2022 e theha tekanyetso bakeng sa tlhahiso le ts'ebeliso ea polyaluminum chloride ka matšoao a botekgeniki a saense le litsamaiso tse matla tsa liteko, e leng se tšoaeang tsoelo-pele e kholo ho lumellanyeng maemo a lik'hemik'hale a kalafo ea metsi a Chaena le melao ea machaba. Likhoebo li lokela ho tsamaisana le ntlafatso e tloaelehileng, ho ntlafatsa lits'ebetso tsa tlhahiso, le ho khothaletsa nts'etsopele ea tikoloho ea kalafo ea metsi a matala hammoho.