Cov khoom siv cuab yeej siv tau los ua cov tshuaj los yog sib tov hauv cov tshuaj, thiab nws dhau los ua cov khoom muaj nyob hauv cov tshuaj thaum ua tshuaj.Thaum nws los txog tshuaj tua kab, nrov hais tsis yog tshuaj tua kab.Cov ntaub ntawv tseem ceeb kuj tau muab faib ua ntau hom, xws li cov khoom siv hluav taws xob hu ua cov hmoov nyoos, thiab cov khoom siv ua kua yog hu ua roj crude.Ib yam li cov tshuaj tua kab tuaj yeem muab faib ua cov khoom thiab ua kua, kuj tseem muaj cov hmoov ntub dej, granules thiab lwm yam.
Cov tshuaj niam txiv yog hais txog qhov sib tov tau los ntawm kev ua kom cov khoom sib xyaw ua ke nrog cov ntsiab lus siab thiab hnyav.Feem ntau hais lus, nws tuaj yeem hais tau tias cov tshuaj tua kab yog tsim los ntawm cov tshuaj qub, tab sis nws txawv ntawm cov txheej txheem tshuaj tua kab.
Cov khoom siv thiab cov tshuaj niam txiv tuaj yeem siv los ua cov khoom siv raw rau kev npaj ua, tab sis lawv tsis haum rau kev siv ncaj qha rau hauv cov qoob loo.Peb feem ntau siv cov tshuaj tua kab uas tau ua tiav.
Txij li thaum lub concentration ntawm cov khoom siv yog siab thiab tsis tau ua tiav, nws puas zoo dua thiab muaj txiaj ntsig?
Cov lus teb yog qhov ua tau zoo ntawm kev siv ncaj qha ntawm cov khoom siv hluav taws xob tsawg, cov pa phem loj, thiab tej zaum yuav muaj teeb meem kev nyab xeeb thiab tshuaj tua kab.
Feem ntau ntawm cov khoom siv tsis yog ncaj qha soluble hauv dej, yog li lawv yuav tsum tau ua rau hauv kev npaj.Cov tshuaj tua kab thiab tshuaj tua kab uas peb feem ntau yuav yog tag nrho cov tshuaj tua kab tom qab ua tiav.
Feem ntau ntawm kev npaj yog raws li cov khoom siv, thiab tom qab ntawd ntxiv lwm cov khoom xyaw, xws li surfactants, technical material, solvents, thiab lwm yam. Thaum kawg, lawv tau npaj kom haum rau kev siv ua liaj ua teb.
Yog tias nws tsis tau ua rau hauv kev npaj, kev siv tshuaj tua kab tsawg tsawg, thiab kev ua haujlwm tsis zoo dispersion tsis zoo, uas yuav ua rau muaj kuab paug ib puag ncig thiab teeb meem kev nyab xeeb.
Thiab cov khoom siv cuab yeej muaj toxicity siab, thiab nws dhau los ua cov tshuaj tua kab uas tsis tshua muaj tshuaj lom tom qab nws tau tsim los rau hauv kev npaj, uas txo cov kev puas tsuaj rau tib neeg lub cev.
Thaum peb siv tshuaj tua kab, lub hom phiaj tseem ceeb yog tswj cov kab mob, kab tsuag thiab nroj tsuag.Yuav kom ua tiav lub hom phiaj no, nws yuav tsis ua mob rau cov qoob loo, yog li peb yuav tsum tau xyuam xim rau:
① Txhawm rau siv nws raws li cov lus qhia ntawm cov tshuaj tua kab, tsis txhob yooj yim nce koob.
② Tsis txhob tsuag tshuaj ntxiv kom tsis txhob muaj tshuaj tua kab puas tsuaj.
③ Nws yog qhov zoo dua los siv tshuaj tua kab hauv huab cua tsis muaj cua kom txo tau qhov tshwm sim ntawm cov tshuaj tua kab drift.
Post lub sij hawm: Feb-07-2022