Cov tshuaj chlorine residual hais txog tias tom qab cov tshuaj tua kab mob chlorine tau muab tso rau hauv dej, ntxiv rau kev noj ib feem ntawm cov tshuaj chlorine los ntawm kev cuam tshuam nrog cov kab mob, kab mob, cov organic teeb meem, thiab cov teeb meem inorganic hauv dej, qhov seem ntawm cov nyiaj ntawm cov tshuaj chlorine. chlorine yog hu ua residual chlorine. Nws tuaj yeem muab faib ua cov tshuaj chlorine dawb thiab cov tshuaj chlorine ua ke. Cov lej ntawm ob cov chlorine seem no yog hu ua tag nrho cov chlorine seem, uas tuaj yeem siv los qhia txog kev tua kab mob tag nrho ntawm lub cev dej. Cov koom haum cuam tshuam hauv ntau qhov chaw tuaj yeem xaiv los txheeb xyuas cov tshuaj chlorine seem lossis tag nrho cov tshuaj chlorine seem raws li cov qauv tsim nyog thiab cov xwm txheej tshwj xeeb ntawm lub cev dej. Ntawm lawv, cov tshuaj chlorine dawb feem ntau yog dawb chlorine nyob rau hauv daim ntawv ntawm Cl2, HOCl, OCl-, thiab lwm yam.; Cov tshuaj chlorine ua ke yog cov chloramines NH2Cl, NHCl2, NCl3, thiab lwm yam, tsim tom qab cov tshuaj tiv thaiv ntawm cov tshuaj dawb chlorine thiab ammonium. Cov tshuaj chlorine residual peb feem ntau hais feem ntau yog hais txog cov tshuaj dawb residual chlorine.
Residual chlorine / tag nrho cov chlorine residual muaj cov kev cai sib txawv rau cov dej haus hauv tsev, dej saum npoo av, thiab dej phwj kho mob. Ntawm lawv, "Txoj Cai Dej Haus Dej" (GB 5749-2006) xav kom cov tshuaj chlorine seem ntawm lub Hoobkas dej ntawm chav dej yuav raug tswj hwm ntawm 0.3-4.0mg / L, thiab cov ntsiab lus chlorine seem nyob rau qhov kawg ntawm cov yeeb nkab network yuav tsum tsis txhob tsawg dua 0.05mg / L. Qhov concentration ntawm cov tshuaj chlorine seem hauv cov dej haus ntawm cov dej hauv nruab nrab ntawm cov dej hauv nruab nrab yuav tsum yog tsawg dua 0.03mg / L. Thaum qhov concentration ntawm cov tshuaj chlorine seem ntau dua 0.5mg / L, nws yuav tsum tau tshaj tawm rau lub tuam tsev tswj hwm ib puag ncig ecological. Raws li qhov sib txawv ntawm cov khoom pov tseg thiab kev tso tawm ntawm cov dej phwj tuaj kho mob, qhov yuav tsum tau muaj rau tag nrho cov tshuaj chlorine seem ntawm qhov hluav taws xob ntawm lub pas dej tua kab mob sib txawv.
Vim tias cov tshuaj chlorine seem thiab tag nrho cov chlorine seem tsis ruaj khov hauv cov dej, lawv cov ntaub ntawv uas twb muaj lawm tau yooj yim cuam tshuam los ntawm cov yam ntxwv xws li qhov kub thiab txias. Yog li ntawd, kev tshawb nrhiav cov tshuaj chlorine residual thiab tag nrho cov tshuaj chlorine residual yog feem ntau pom zoo kom kuaj sai sai ntawm qhov chaw kuaj xyuas kom paub tseeb qhov tseeb ntawm kev kuaj pom. Txoj kev tshawb nrhiav cov tshuaj chlorine seem thiab tag nrho cov tshuaj chlorine seem suav nrog "HJ 586-2010 Kev txiav txim siab ntawm cov tshuaj dawb thiab tag nrho cov tshuaj chlorine hauv dej zoo N, N-diethyl-1,4-phenylenediamine spectrophotometric method", electrochemical method, reagent method, thiab lwm yam. Lianhua Technology LH-CLO2M Portable Chlorine Meter yog tsim los ntawm DPD spectrophotometric, thiab tus nqi tuaj yeem tau txais hauv 1 feeb. Nws yog dav siv nyob rau hauv lub sij hawm saib xyuas ntawm cov chlorine residual thiab tag nrho cov chlorine residual vim hais tias ntawm nws nrhiav kom tau raug thiab yooj yim ntawm kev khiav hauj lwm ntawm kev ua hauj lwm.
Post lub sij hawm: Mar-14-2023
