Tam sim no, txoj kev kho kev kho mob ntawm physicochemical thiab biochemical tseem yog cov kev tshawb fawb tseem ceeb ntawm kev siv tshuaj tua kab nrig, thiab tseem siv cov cuab yeej siv tshuaj kho lub tsev uas tau txais los ntawm cov tuam txhab ceev ceev hauv tsev thiab txawv teb chaws.
1 kev kho mob physicochemical
Physicochemical cov kev kho mob xws li extraction, distillation thiab evaporation, coagulation, air floatation, adsorption, thiab lwm yam.These technologies yog tsuas yog nyob rau hauv cov kev tshawb fawb soj ntsuam theem, thiab cov kev tshawb nrhiav coj tau zoo rau cov kev tshem tawm ntawm tej pa kuab nyob hauv cov dej khib nyiab, cov kev tshem tawm txoj kev ua haujlwm tseem txwv tsis pub lawv daim ntawv thov kev lag luam.Du calliling li al. [2] thiab bayer li al. [2] tsom tau tias txoj kev extraction tau ua tiav zoo dua rau cov khoos tshav organic nyob rau hauv cov pob txha pob txha, tabsis tsis hloov cov ntsev dej ntawm cov dej khib nyiab, thiab tus nqi ntawm tus neeg saib xyuas extraction yog loj, nqa theem qias tuaj thiab ua rau.Distillation thiab cov evaporation muaj peev xwm txo cov ntsiab lus ntawm cov khoom xyaw thiab cov organic compounds nyob rau hauv cov dej khib nyiab [3-4], tiam sis txoj kev no muaj zog ua noj thiab cov nqi ua haujlwm, thiab tsim nyog rau kev kho cov dej khib nyiab uas muaj salinity thiab cov dej tsawg.Flocculation test [5 ] qhia tau hais tias cov flocculants cov pa luam yeeb tsis muaj teeb meem nyob rau hauv kev kho mob ncaj qha ntawm cov khoom siv hluav taws xob hauv siab. Txawm hais tias muaj diatomite compound coagulant [6] kuj pabcuam kev ua haujlwm ntawm cov coagulation pretreatment accelerator wastewater, nws yog qhov nyuaj los npaj xws coagulant.Adsorption txoj kev muaj cov nyhuv zoo rau kev tshem tawm ntawm cov organic teeb meem uas nyuaj rau oxidized thiab degraded los ntawm ob leeg cov pa thiab tshuaj oxidation. Cov khoom siv tau pom tias activated carbon, muaj hom adsorbent, muaj cov nyom adsorption zoo dua rau cov khoom siv dej qis nrog tsawg COD concentration [7]. Ntxiv rau, vim nws cov nqi siab, nws tsis yog pheej yig rau pretreat wastewater nrog siab concentration, thiab nws yog feem ntau siv raws li tus effluent tswj index rau tom ntej kev kho mob.
2 tshuaj kho mob
Cov tshuaj lom neeg txoj hauv kev yog tshuaj lom neeg los ntawm oxidation thiab micro-electrolysis. Cov tshuaj oxidative yog ib hom kev oxidative degradation thiab tshem tawm cov tshuaj muaj kuab paug hauv wastewater. Txawm li cas los siv oxidants yog Fenton reagents, tshuaj oxidants thiab ozone.Studies [8-11] tau pom tias cov oxidants no tsis muaj peev xwm tshem tawm cov ntshav, thiab qhov ntau ntawm cov tshuaj reagents ntxiv yog loj, cov sijhawm ua haujlwm raug siab, thiab ntau tus by-products yuav tsum ua tom qab ozonation [12] .Hydraulic carbon micro -Txhob tus txheej txheem yog yooj yim, muaj peev xwm ua tiav lub hom phiaj ntawm "pov tseg rau pov tseg" .Txawm li ntawd, qhov tsis zoo ntawm hom no yog tias pH yuav tsum tau kho ua ntej thiab tom qab qhov tshuaj tiv thaiv, thiab ntau npaum li cas hlau sludge yuav tsum tau muab pov tseg tom qab Yog li, iron-carbon micro-electrolysis yog feem ntau nrog lwm cov kev kho mob, xws li coagulation thiab Fenton oxidation, los txhim kho txoj kev kho kom zoo y thiab txo nqi kho mob.
3 txoj kev biochemical
Tiam sis, feem ntau ntawm cov dej khib nyiab yooj yim yuav kho ncaj qha los ntawm cov pa biochemical txoj kev, tshwj xeeb tshaj yog cov khoom siv dej qis nrog ntsev, siab ammonia nitrogen thiab cov tshuaj lom neeg muaj mob, uas yog tseem bottleneck ntawm daim ntawv thov ntawm biochemical kho tshuab.