Decentralized Wastewater Treatment: Ib qho kev daws teeb meem

Decentralized wastewater kho muaj ntau txoj hauv kev rau kev sau, kev kho, thiab dispersal/reuse of wastewater rau tus kheej lub tsev, industrial lossis institutional chaw, pawg tsev lossis lag luam, thiab tag nrho cov zej zog.Kev ntsuam xyuas ntawm qhov chaw tshwj xeeb yog ua los txiav txim seb hom kev kho mob tsim nyog rau txhua qhov chaw.Cov kab ke no yog ib feem ntawm cov txheej txheem ruaj khov thiab tuaj yeem tswj tau raws li cov chaw nyob ib leeg lossis koom ua ke nrog cov kav dej phwj hauv nruab nrab.Lawv muab ntau yam kev kho mob los ntawm kev yooj yim, kev kho mob tsis tu ncua nrog cov av dispersal, feem ntau hu ua septic lossis onsite systems, mus rau ntau txoj hauv kev thiab kev siv tshuab xws li cov chaw kho mob siab heev uas sau thiab kho cov khoom pov tseg los ntawm ntau lub tsev thiab tawm mus rau cov dej saum npoo av. los yog av.Lawv feem ntau ntsia ntawm lossis ze ntawm qhov chaw uas cov dej khib nyiab tsim tawm.Cov txheej txheem uas tso tawm rau saum npoo av (dej lossis av) yuav tsum tau daim ntawv tso cai National Pollutant Discharge Elimination System (NPDES).

Cov tshuab no tuaj yeem:

• Ua hauj lwm ntau yam xws li cov tsev neeg, cov lag luam, lossis cov zej zog me;

• Kho cov dej khib nyiab rau qib tiv thaiv pej xeem kev noj qab haus huv thiab dej zoo;

• Ua raws li cov cai tswj hauv nroog thiab xeev;thiab

• Ua haujlwm zoo nyob rau hauv qhov chaw nyob deb nroog, suburban thiab nroog.

VIM LI CAS THIAJ PAUB TXOG KEV KAWM NTAWV?

Kev kho cov dej khib nyiab tuaj yeem yog qhov kev xaiv ntse rau cov zej zog xav txog cov txheej txheem tshiab lossis hloov kho, hloov, lossis nthuav dav cov kev kho dej khib nyiab uas twb muaj lawm.Rau ntau lub zej zog, kev kho decentralized tuaj yeem yog:

• Nqi-zoo thiab kev lag luam

• Zam cov nqi peev loj

• Txo cov nqi ua haujlwm thiab tu

• Txhawb kev lag luam thiab kev ua haujlwm

• Ntsuab thiab ruaj khov

• Pab tau dej zoo thiab muaj

• Siv lub zog thiab av kom zoo

• Teb ​​rau kev loj hlob thaum khaws cov chaw ntsuab

• Muaj kev nyab xeeb hauv kev tiv thaiv ib puag ncig, kev noj qab haus huv pej xeem, thiab dej zoo

• Tiv thaiv zej zog kev noj qab haus huv

• Txo cov pa phem, khoom noj khoom haus, thiab cov khoom paug tawm

• Txo kev sib kis thiab kev pheej hmoo kev noj qab haus huv cuam tshuam nrog cov dej khib nyiab

LUB KAUJ RUAM

Kev kho dej khib nyiab tuaj yeem yog qhov kev daws teeb meem zoo rau cov zej zog ntawm txhua qhov loj thiab cov pej xeem.Zoo ib yam li lwm qhov system, cov txheej txheem decentralized yuav tsum tsim kom zoo, tswj xyuas, thiab ua haujlwm kom muaj txiaj ntsig zoo.Qhov twg lawv tau txiav txim siab ua kom haum zoo, cov txheej txheem decentralized pab cov zej zog kom ncav cuag peb txoj kab hauv qab ntawm kev ruaj ntseg: zoo rau ib puag ncig, zoo rau kev lag luam, thiab zoo rau tib neeg.

UA LI CAS

Loudoun County, VA

Loudoun Dej, hauv Loudoun County, Virginia (a Washington, DC, suburb), tau txais ib qho kev sib koom ua ke rau kev tswj cov dej khib nyiab uas suav nrog kev yuav khoom los ntawm cov nroj tsuag hauv nruab nrab, lub chaw dej satellite reclamation, thiab ntau qhov me me hauv zej zog.Txoj hauv kev tau tso cai rau lub nroog tswj hwm nws cov neeg nyob deb nroog thiab tsim kom muaj kev loj hlob uas them nyiaj rau kev loj hlob.Cov neeg tsim khoom tsim thiab tsim cov chaw dej khib nyiab rau Loudoun Water cov qauv ntawm lawv tus kheej tus nqi thiab hloov cov tswv cuab ntawm lub kaw lus mus rau Loudoun Water rau kev saib xyuas txuas ntxiv.Qhov kev pab cuam yog nyiaj txiag tus kheej txhawb nqa los ntawm cov nqi uas them rau cov nuj nqis.Yog xav paub ntxiv:http://www.loudounwater.org/

Rutherford County, TN

Consolidated Utility District (CUD) ntawm Rutherford County, Tennessee, muab cov kev pabcuam lim dej rau ntau tus neeg siv khoom sab nraud los ntawm kev tsim kho tshiab.Lub kaw lus siv feem ntau hu ua septic tank effluent pumping (STEP) system uas muaj kwv yees li 50 subdivision wastewater systems, tag nrho cov uas muaj STEP system, ib tug recirculating xuab zeb lim, thiab ib tug loj effluent drip dispersal system.Tag nrho cov txheej txheem yog tus tswv thiab tswj hwm los ntawm Rutherford County CUD.Lub kaw lus tso cai rau kev loj hlob ceev (subdivisions) nyob rau hauv cov cheeb tsam ntawm lub nroog uas lub nroog cov kav dej tsis muaj los yog cov av hom tsis haum rau cov pa septic tank thiab ntws cov kab.Lub 1,500-gallon septic tank yog nruab nrog lub twj tso kua mis thiab tswj vaj huam sib luag nyob ntawm txhua qhov chaw nyob rau kev tswj cov dej khib nyiab mus rau hauv nruab nrab cov dej khib nyiab.Yog xav paub ntxiv: http://www.cudrc.com/Departments/Waste-Water.aspx

Tsab ntawv yog luam tawm los ntawm: https://www.epa.gov/sites/production/files/2015-06/documents/mou-intro-paper-081712-pdf-adobe-acrobat-pro.pdf