Iron Free Alulfate arung arai ni a hpaga lam hpe grai jai lang lu ai.

Iron manu jahpu n jaw ra ai aluminum sulfate hpe alum hte kayau kaya galaw chye ai. Aluminum sulfate hpe lu hka hte hka shin ai arung arai ni hpe jasan jaseng na matu, laika ka ai bungli hta mung, flocculant hku nna jai lang mai ai.
Hpa majaw nga yang, magri n lawm ai aluminum sulfate hpe rosin gum, wax lotion hte kaga sizing sizing arung arai ni a marang e, hka hpe jasan jaseng ai hta flocculant hku nna jai lang ai sha n-ga, hka hpe jasan jaseng ai hta, foam wan sat jak ni hpe n-gun jaw ai, aluminum hpraw, sau hpraw, sau garan ai, n-gun n rawng ai, n-gun n rawng ai arung arai ni hpe galaw shapraw na matu, n-gun rawng ai arung arai ni hpe mung, n-gun n rawng ai arung arai ni a matu, n-gun rawng ai arung arai ni hku nna jai lang ai. lung seng nlung ni hte tsaw ai{1}}grade ammonium alum. 5mg/kg n jan ai arsenic n-gun rawng ai arung arai ni hpe hka hpe jasan jaseng ai hpun ni hku nna lang mai ai. Grau nna, laika buk galaw ai bungli hta, hka hpe ninghkap lu ai atsam hte laika pa a anti{5}}seepage hpe grau kaja hkra galaw na matu, laika si sizing agent hku nna lang ai.
Dai majaw, magri n lawm ai aluminum sulfate hpe, hpaga lam galaw ai lam hpe grai law hkra n-gun jaw ya ai, hpaga lam hte seng ai tsi langai hku nna, grai lang mai ai.