Cov khib nyiab pov tseg zaj dab neeg

Lub chaw pov tseg cov khib nyiab (tseem hu ua chav pov tseg pov tseg, khib nyiab pov tseg, garburator thiab lwm yam) yog ib qho khoom siv, feem ntau yog siv hluav taws xob, ntsia hauv qab chav ua noj dab dej ntawm lub dab dej thiab lub ntxiab.Lub tsev pov tseg muab cov khoom pov tseg rau hauv cov khoom me me - feem ntau tsawg dua 2 hli (0.079 nyob rau hauv) txoj kab uas hla - kom dhau los ntawm cov kav dej.

Keeb kwm

Lub chaw pov tseg cov khib nyiab tau tsim nyob rau xyoo 1927 los ntawm John W. Hammes tus kws tsim qauv ua haujlwm hauv Racine, Wisconsin.Nws tau thov rau patent xyoo 1933 uas tau tshaj tawm hauv xyoo 1935. teeb tsa nws lub tuam txhab muab nws pov tseg rau hauv kev ua lag luam hauv xyoo 1940.Hammes qhov kev thov yog qhov tsis txaus siab, raws li General Electric tau qhia txog kev pov tseg cov khib nyiab hauv xyoo 1935, hu ua Disposal.
Hauv ntau lub nroog hauv Tebchaws Meskas hauv xyoo 1930 thiab 1940s, lub nroog cov dej phwj tuaj muaj cov cai txwv tsis pub muab cov khoom pov tseg (khoom noj khoom haus) rau hauv lub cev.John tau siv zog ntau heev, thiab tau ua tiav zoo hauv kev ntxias ntau lub zos kom tshem tawm cov kev txwv no.

Ntau lub tebchaws hauv Tebchaws Meskas txwv tsis pub siv cov khoom pov tseg.Tau ntau xyoo, cov khib nyiab pov tseg tau ua txhaum cai hauv New York City vim tias muaj kev cuam tshuam txog kev puas tsuaj rau lub nroog cov kav dej.Tom qab kev kawm 21-lub hlis nrog NYC Lub Tsev Haujlwm Saib Xyuas Kev Tiv Thaiv Ib puag ncig, qhov kev txwv no tau muab tshem tawm hauv 1997 los ntawm txoj cai hauv zos 1997/071, uas tau hloov kho ntu 24-518.1, NYC Txoj Cai Tswjfwm.

Xyoo 2008, lub nroog Raleigh, North Carolina tau sim txwv qhov kev hloov pauv thiab teeb tsa cov pov tseg pov tseg, uas tseem txuas ntxiv mus rau cov nroog sab nraud sib koom lub nroog cov dej phwj hauv nroog, tab sis tshem tawm qhov txwv ib hlis tom qab.

Kev saws me nyuam hauv teb chaws USA

Hauv Tebchaws Meskas, qee qhov 50% ntawm cov tsev muaj cov khoom pov tseg raws li xyoo 2009, piv nrog tsuas yog 6% hauv tebchaws United Kingdom thiab 3% hauv Canada.

Hauv Sweden, qee lub nroog txhawb nqa kev teeb tsa cov khoom pov tseg txhawm rau txhawm rau tsim cov khoom siv biogas.Qee lub nroog hauv tebchaws Askiv tau pab nyiaj rau kev yuav cov khib nyiab pov tseg txhawm rau txo cov khoom pov tseg mus pov tseg.

Kev xav

Cov khoom noj khoom haus muaj li ntawm 10% mus rau 20% ntawm cov khoom pov tseg hauv tsev, thiab yog ib qho teeb meem ntawm cov khib nyiab hauv nroog, tsim kev noj qab haus huv rau pej xeem, kev huv huv thiab ib puag ncig teeb meem ntawm txhua kauj ruam, pib nrog kev khaws cia sab hauv thiab ua raws li cov tsheb thauj khoom.Hlawv rau hauv cov chaw pov tseg-rau-zog, cov dej siab-cov ntsiab lus ntawm cov khoom siv khib nyiab txhais tau hais tias lawv cov cua sov thiab kub siv zog ntau dua li nws tsim;faus rau hauv qhov chaw pov tseg, cov khoom seem decompose thiab tsim cov roj methane, lub tsev cog khoom roj uas ua rau muaj kev hloov pauv huab cua.

Lub hauv paus tom qab siv cov khoom pov tseg kom zoo yog txhawm rau saib cov khoom seem li kua (qhov nruab nrab 70% dej, zoo li tib neeg pov tseg), thiab siv cov khoom siv uas twb muaj lawm (cov kav dej hauv av thiab cov chaw kho dej khib nyiab) rau nws txoj kev tswj hwm.Cov nroj tsuag dej khib nyiab niaj hnub no muaj txiaj ntsig zoo ntawm kev ua cov organic khib nyiab rau hauv cov khoom siv chiv (hu ua biosolids), nrog rau cov chaw siab heev kuj ntes methane rau kev tsim hluav taws xob.