Chav ua noj cov khoom pov tseg hauv chav ua noj ua rau cov khoom siv cov pa roj carbon monoxide nce mus txog qhov chaw kho dej, uas ua rau nce kev noj cov pa oxygen. Metcalf thiab Eddy ntsuas qhov kev cuam tshuam no li 0.04 phaus (18 g) ntawm biochemical oxygen xav tau rau ib tus neeg hauv ib hnub uas siv cov khoom pov tseg.] Ib txoj kev tshawb fawb Australian uas piv rau cov khoom noj hauv lub dab ntxuav muag rau kev hloov pauv los ntawm kev ntsuam xyuas lub neej-kawg pom tias thaum lub Cov pov tseg hauv lub dab dej ua tau zoo nrog rau kev hloov pauv huab cua, acidification, thiab kev siv lub zog, nws tau pab txhawb rau eutrophication thiab toxicity. muaj peev xwm.
Qhov no yuav ua rau cov nqi siab dua rau lub zog xav tau los muab cov pa oxygen hauv cov haujlwm thib ob. Txawm li cas los xij, yog tias kev kho cov dej khib nyiab tau tswj tau zoo, cov organic carbon hauv cov zaub mov yuav pab kom cov kab mob decomposition khiav, vim tias cov pa roj carbon yuav tsis muaj nyob hauv cov txheej txheem ntawd. Cov pa roj carbon ntau ntxiv no ua haujlwm pheej yig thiab txuas ntxiv ntawm cov pa roj carbon uas tsim nyog rau kev tshem tawm cov khoom noj biologic.
Ib qho txiaj ntsig yog qhov loj dua ntawm cov khoom seem ntawm cov txheej txheem dej khib nyiab. Raws li kev tshawb fawb ntawm East Bay Municipal Utility District qhov chaw kho dej khib nyiab tau txais nyiaj los ntawm EPA, cov khoom noj khib nyiab tsim tawm peb zaug ntawm biogas piv rau cov dej phwj hauv nroog. Tus nqi ntawm cov biogas uas tsim los ntawm anaerobic digestion ntawm cov zaub mov pov tseg zoo nkaus li tshaj tus nqi ntawm kev ua cov zaub mov pov tseg thiab pov tseg cov seem biosolids (raws li lub tshav dav hlau LAX lub tswv yim kom hloov 8,000 tons / xyoo ntawm tej zaub mov pov tseg).
Hauv kev tshawb fawb ntawm Hyperion dej phwj kho cog hauv Los Angeles, kev siv pov tseg tau pom tsawg kawg nkaus kom tsis muaj kev cuam tshuam rau tag nrho cov biosolids byproduct los ntawm kev kho dej phwj thiab zoo ib yam li kev cuam tshuam tsawg kawg nkaus rau kev tuav cov txheej txheem raws li cov khoom tawg yooj yim heev (VSD) los ntawm cov khoom pov tseg cov khoom noj tsawg kawg nkaus. tus nqi ntawm cov khoom nyob rau hauv residue.
Kev siv hluav taws xob feem ntau yog 500–1,500 W, piv rau cov hlau hluav taws xob, tab sis tsuas yog ib lub sijhawm luv luv xwb, tag nrho kwv yees li 3-4 kWh ntawm hluav taws xob ib tsev neeg hauv ib xyoos.] Kev siv dej txhua hnub txawv, tab sis feem ntau yog 1 US nkas loos (3.8). L) dej rau ib tus neeg hauv ib hnub, piv rau qhov tso quav ntxiv. Ib qho kev tshawb fawb ntawm cov chaw ua zaub mov no pom tias muaj kev siv dej hauv tsev me me.
Post lub sij hawm: Feb-07-2023