Chii chinonzi Biochemical Oxygen Demand (BOD)?
Biochemical Oxygen Demand (BOD) Iyo inozivikanwawo se biochemical oxygen inoda. Indekisi yakazara inoratidza zviri mukati meokisijeni-inoda zvinhu senge organic compounds mumvura. Kana iyo organic matter iri mumvura yasangana nemhepo, inowora ne aerobic microorganisms, uye huwandu hweoxygen hunodiwa kuti iite inorganic kana gasified inonzi biochemical oxygen demand, inoratidzwa muppm kana mg/L. Kukwirira ukoshi, kunowedzera kusvibisa kwehupenyu mumvura uye kunowedzera kusvibisa. Muchokwadi, nguva yekuora zvachose organic zvinhu inosiyana nerudzi uye huwandu hwayo, rudzi uye huwandu hwehutachiona, uye chimiro chemvura. Zvinowanzotora makumi kana mazana emazuva kuti oxidize zvachose uye kuora. Uyezve, Dzimwe nguva nekuda kwekupesvedzera kwesimbi inorema uye chepfu mumvura, zviitwa zvema microorganisms zvinodziviswa uye kunyange kuurayiwa. Naizvozvo, zvakaoma kuyera BOD nemazvo. Kuti upfupise nguva, iyo yemazuva mashanu yeokisijeni inoda (BOD5) inowanzo shandiswa seyakanyanya fungidziro mwero wezvakasvibiswa zvinosvibisa mumvura. BOD5 inenge yakaenzana ne70% yekushandiswa kweokisijeni yekuparara kwakakwana kweoxidative. Kazhinji kutaura, nzizi dzine BOD5 pazasi 4ppm dzinogona kunzi hadzina kusvibiswa.
Nzira yekuyedza Biochemical oxygen kudiwa?
Chiri nyore-kushanda-BOD yekuona chiridzwa chakakosha zvakanyanya pakuona kwemhando yemvura. Lianhua's BOD5 chiridzwa chinotora mercury-isina mutsauko (manometric) nzira, iyo inogona kuyedza mvura ine mabhakitiriya pasina kuwedzera kemikari reagents, uye mhedzisiro yacho inogona kudhindwa yega. Inotungamira patented tekinoroji.
Chii chinonzi Chemical Oxygen Demand (COD)?
Chemikari yeokisijeni inoda (COD) huwandu hweokisijeni inodiwa kuti iite oxidize organic zvinosvibisa uye zvimwe zvinodzikisa mumvura pasi pemamwe mamiriro ane oxidizing agent (senge potassium dichromate kana potassium permanganate), inoratidzwa mumamilligrams eokisijeni inodyiwa parita yesampuli yemvura. number yakati. COD chiratidzo chakakosha chinowanzo shandiswa kuongorora kunaka kwemvura. Kemikari okisijeni inodiwa ine maitiro eiyo yakapusa uye nekukurumidza yekutsunga nzira. Potassium chromate, iyo oxidizing agent, inogona kunyatso oxidize organic zvinhu mumvura, uye inogona zvakare oxidize zvimwe zvinoderedza zvinhu. Iyo oxidant potassium permanganate inogona chete oxidize inenge 60% yezvinhu zvipenyu. Hapana kana imwe yenzira mbiri idzi inokwanisa kuratidza mamiriro chaiwo ekuparara kwezvinosvibisa zvipenyu mumvura, nekuti hapana kana imwe yadzo inoburitsa huwandu hwezvinhu zvipenyu izvo tupukanana tunogona kuita oxidize. Naizvozvo, biochemical oxygen inodikanwa inowanzo shandiswa mukudzidza kwemhando yemvura yakasvibiswa neorganic matter.
Parizvino, kuona kweCOD kwakajairika mukuchenesa mvura, uye inodiwa nemafekitori, mafekitori, mafekitori etsvina, makanzuru, nzizi nemamwe maindasitiri. Lianhua's COD yekuona tekinoroji inogona kukurumidza kuwana mhinduro dzakakwana mukati memaminitsi makumi maviri uye inoshandiswa zvakanyanya.
Nguva yekutumira: Kubvumbi-27-2023
