Kukonzanitsa Anaerobic Waste Water Treatment ndi Advanced TOC Monitoring

Pochiza madzi oyipa, kuyang'anira katundu wa organic, makamaka Total Organic Carbon (TOC), kwakhala kofunika kwambiri kuti ntchito zisamayende bwino. Izi ndizowona makamaka m'mafakitale omwe ali ndi zinyalala zosiyanasiyana, monga gawo lazakudya ndi zakumwa (F&B).

M'mafunsowa, a Jens Neubauer ndi a Christian Kuijlaars ochokera ku Veolia Water Technologies & Solutions amalankhula ndi AZoMaterials za kufunikira kwa kuwunika kwa TOC komanso momwe kupita patsogolo kwaukadaulo wa TOC kusinthira njira zoyeretsera madzi oyipa.

Chifukwa chiyani kuyang'anira katundu wa organic, makamaka Total Organic Carbon (TOC), ndikofunikira pakuyeretsa madzi oyipa?
Jens: M'madzi ambiri onyansa, zonyansa zambiri zimakhala zachilengedwe, ndipo izi ndi zoona makamaka ku gawo la F&B. Choncho, ntchito yaikulu ya malo osungira zonyansa ndikuphwanya zinthu zamoyozi ndikuzichotsa m'madzi otayira. Kuchulukitsitsa kwa njira kumapangitsa kuthira madzi otayira mwachangu komanso moyenera. Izi zimafunika kuyang'anitsitsa nthawi zonse momwe madzi akuwonongeka kuti athetse kusinthasintha kulikonse, kuonetsetsa kuti kuyeretsedwa bwino ngakhale kuti nthawi yachidule ya mankhwala.

Njira zachikhalidwe zoyezera zinyalala m'madzi, monga kufunikira kwa oxygen (COD) ndi mayeso a biochemical oxygen demand (BOD), ndizochedwa kwambiri - zimatenga maola ambiri mpaka masiku - kuzipangitsa kuti zikhale zosayenera njira zamakono zochizira. COD inkafunikanso poizoni reagents, amene si zofunika. Poyerekeza, kuyang'anira katundu wa organic pogwiritsa ntchito kusanthula kwa TOC kumangotenga mphindi zochepa ndipo sikuphatikiza zotulutsa poizoni. Ndi yoyenera kusanthula ndondomeko komanso imapereka zotsatira zolondola kwambiri. Kusinthaku kopita ku kuyeza kwa TOC kumawonekeranso mumiyezo yaposachedwa ya EU yokhudzana ndi kutulutsa, momwe kuyeza kwa TOC ndi njira yomwe amakonda. Commission Implementing Decision (EU) 2016/902 inakhazikitsa mfundo zabwino zomwe zilipo (BAT) pansi pa Directive 2010/75/EU pamakina odziwika bwino oyeretsera/kasamalidwe ka madzi oipa m'gawo la mankhwala. Zosankha zotsatila za BAT zitha kufotokozedwanso pamutuwu.

Kodi kuyang'anira kwa TOC kumagwira ntchito yanji poonetsetsa kuti njira zoyeretsera madzi oyipa zikuyenda bwino?
Jens: Kuyang'anira TOC kumapereka chidziwitso chofunikira pakukweza kaboni m'malo osiyanasiyana.

Kuyang'anira TOC isanalandire chithandizo chachilengedwe imalola kuti izindikire zosokoneza pakukweza kwa kaboni ndikuitembenuzira ku akasinja osungira ngati pakufunika. Izi zitha kupewa kulemetsa zamoyo ndikuzibwezeretsanso pakapita nthawi, zomwe zimapangitsa kuti mbewuyo ikhale yotetezeka komanso yokhazikika. Kuyeza TOC isanayambe kapena itatha sitepe yokhazikika kumathandizanso oyendetsa kuwongolera dosing ya coagulant mwa kukhathamiritsa kuwonjezera kwa carbon kuti asafe ndi njala kapena kudyetsa mabakiteriya m'matangi aeration ndi / kapena panthawi ya anoxic.

Kuwunika kwa TOC kumapereka chidziwitso pamiyezo ya kaboni pamalo otulutsa ndikuchotsa bwino. Kuwunika kwa TOC pambuyo pa sedimentation yachiwiri kumapereka miyeso yeniyeni ya carbon yomwe imatulutsidwa m'chilengedwe ndikutsimikizira kuti malire akwaniritsidwa. Kuphatikiza apo, kuwunika kwachilengedwe kumapereka chidziwitso pamiyezo ya kaboni kuti akwaniritse chithandizo chamankhwala apamwamba kuti agwiritsenso ntchito ndipo kutha kuthandizira kukhathamiritsa kwa dosing yamankhwala, kuchiritsa kwa membrane, ndi dosing ya ozone ndi UV.