Hauv kev kho cov roj pov tseg, tshwj xeeb tshaj yog hauv kev kho cov roj pov tseg kev lag luam uas muaj VOCs (xws li kev luam ntawv, pleev xim, thiab kev lag luam tshuaj lom neeg), hmoov av diatomaceous tuaj yeem nqus cov tshuaj lom neeg zoo. Cov qauv porous ntawm hmoov diatomite muaj ntau qhov chaw adsorption, uas tuaj yeem ntes cov VOC molecules los ntawm van der Waals rog thiab electrostatic attraction. Tom qab hloov kho qhov chaw ntawm hmoov av diatomaceous (xws li kev thauj cov pa roj carbon activated, titanium dioxide, thiab lwm yam), nws lub peev xwm adsorption rau VOCs tuaj yeem txhim kho ntxiv. Piv txwv li, piv txwv li, lub rooj cob qhia pleev xim ntawm lub Hoobkas tsim tsheb, cov roj pov tseg muaj ntau benzene, toluene, thiab xylene. Tom qab dhau cov roj pov tseg los ntawm lub txaj lim dej uas muaj cov hmoov av diatomaceous hloov kho, qhov kev tshem tawm ntawm benzene, toluene, thiab xylene tuaj yeem ncav cuag ntau dua 90%, thiab qhov concentration ntawm VOCs hauv cov roj pov tseg kho qis dua tus qauv tso pa tawm hauv tebchaws (≤80 mg / m³). Piv nrog rau cov pa roj carbon uas tau ua kom cov av noo, cov hmoov av diatomaceous muaj qhov zoo ntawm tus nqi qis, lub neej ntev (lub sijhawm nqus dej yog 2-3 npaug ntawm cov pa roj carbon uas tau ua kom cov av noo), thiab yooj yim rov ua dua tshiab (tuaj yeem rov ua dua tshiab los ntawm kev cua sov ntawm 300-400 ° C, thiab lub peev xwm nqus tau tuaj yeem rov qab los ntau dua 85% tom qab rov ua dua tshiab).​

Hauv kev kho cov pa roj pov tseg uas muaj ntxhiab tsw (xws li cov chaw kho cov khib nyiab, cov chaw kho dej phwj, thiab cov chaw ua liaj ua teb), hmoov av diatomaceous kuj tseem tuaj yeem ua lub luag haujlwm zoo hauv kev tshem tawm ntxhiab tsw. Cov tshuaj tsw qab feem ntau suav nrog ammonia, hydrogen sulfide, thiab mercaptans. Cov qauv porous ntawm hmoov diatomite tuaj yeem nqus cov molecules tsw qab no, thiab cov pab pawg alkaline lossis acidic ua haujlwm ntawm nws qhov chaw (tom qab hloov kho) tuaj yeem cuam tshuam nrog cov tshuaj tsw qab kom rhuav tshem lawv mus rau hauv cov tshuaj tsis muaj teeb meem. Lub chaw kho cov khib nyiab hauv lub nroog ntug dej hiav txwv siv lub tshuab tshem tawm ntxhiab tsw raws li hmoov av diatomaceous. Tom qab kev teeb tsa, qhov concentration ntawm ntxhiab tsw nyob ib puag ncig lub Hoobkas tau txo qis los ntawm 5000 OU / m³ mus rau tsawg dua 200 OU / m³, uas qis dua tus qauv hauv tebchaws (≤400 OU / m³), ​​thiab cov lus tsis txaus siab los ntawm cov neeg nyob ze tau txo qis 90%. Tib lub sijhawm, cov hmoov av diatomaceous siv hauv lub tshuab tshem tawm ntxhiab tsw tuaj yeem rov siv dua tom qab rov tsim dua, txo cov khib nyiab khov kho tsim.

Hauv kev kho dej khib nyiab, hmoov av diatomaceous uas muaj cov dej noo ntau tuaj yeem siv los kho cov dej khib nyiab hauv kev lag luam uas muaj cov pa phem organic (xws li cov dej khib nyiab luam ntawv thiab zas xim, cov dej khib nyiab tshuaj lom neeg). Cov dej khib nyiab luam ntawv thiab zas xim muaj ntau cov xim thiab cov khoom pabcuam, uas muaj chroma thiab COD siab, thiab nyuaj rau degrade. Ntxiv 2-5% hmoov av diatomaceous rau cov dej khib nyiab tuaj yeem nqus cov xim thiab cov organic hauv dej. Kev sim qhia tau tias tus nqi tshem tawm chroma ntawm cov dej khib nyiab luam ntawv thiab zas xim tuaj yeem ncav cuag ntau dua 95%, thiab tus nqi tshem tawm COD tuaj yeem ncav cuag 60-80%. Piv nrog cov tshuaj coagulants ib txwm muaj (xws li txhuas sulfate), hmoov av diatomaceous tsis muaj kuab paug thib ob (tsis muaj txhuas ion residue), thiab cov sludge tsim tom qab kho yog yooj yim dehydrate thiab tuaj yeem siv ua cov khoom siv hauv tsev tom qab kho tsis muaj teeb meem. Lub Hoobkas luam ntawv thiab zas xim hauv Zhejiang siv hmoov av diatomaceous los kho nws cov dej khib nyiab. Tom qab kho, cov dej khib nyiab tuaj yeem rov ua dua tshiab rau kev tsim khoom (tom qab kev kho mob ntxiv), txo cov dej siv ntawm lub Hoobkas los ntawm 30% thiab txuag ntau cov nqi dej.

Peb cov hmoov av diatomaceous uas nqus tau zoo rau kev tiv thaiv ib puag ncig muaj ntau hom khoom, suav nrog hmoov, granular, thiab extruded. Cov hmoov (100-800 mesh) yog qhov tsim nyog rau kev kho dej khib nyiab thiab cov pej thuam adsorption roj pov tseg; cov granular (1-5 mm) yog qhov tsim nyog rau cov txheej txheem adsorption ruaj khov hauv kev kho roj pov tseg; cov extruded (5-10 mm) yog qhov tsim nyog rau cov haujlwm kho roj pov tseg loj nrog cov pa cua ntau. Cov cim qhia tseem ceeb ntawm peb cov khoom yog: thaj chaw tshwj xeeb ≥200 m²/g, qhov ntim ntawm qhov pore ≥0.8 cm³/g, muaj peev xwm adsorption rau methylene xiav ≥15 mL/0.1g, thiab cov dej noo ≤3%. Peb kuj tseem tuaj yeem muab cov khoom hmoov av diatomaceous hloov kho raws li cov neeg siv khoom cov khoom kho tshwj xeeb, xws li cov hmoov diatomite uas muaj cov pa roj carbon activated (rau VOCs adsorption), cov hmoov diatomite uas muaj titanium dioxide (rau kev rhuav tshem cov pa phem organic), thiab cov hmoov diatomite alkaline (rau kev adsorption hydrogen sulfide).

Hauv cov txheej txheem tsim khoom, peb siv cov thev naus laus zis ua kom muaj zog los txhim kho lub peev xwm nqus ntawm cov hmoov av diatomaceous. Cov txheej txheem ua kom muaj zog suav nrog kev ua kom muaj kua qaub (siv cov kua qaub sulfuric los txiav cov nplaim ntawm cov khoom me me diatomite, ua rau muaj ntau qhov hws) thiab kev ua kom muaj cua sov (calcining ntawm qhov kub siab kom tshem tawm cov organic impurities hauv cov qhov hws thiab nthuav qhov loj ntawm qhov hws). Cov hmoov av diatomaceous uas ua kom muaj zog muaj thaj chaw tshwj xeeb nce ntxiv 30-50% piv rau cov hlau qub, thiab lub peev xwm nqus tau zoo dua qub. Txhua pawg khoom yuav raug kuaj lub peev xwm nqus (siv cov kua methylene xiav ua cov adsorbate) thiab kuaj cov qauv qhov hws (siv cov khoom ntsuas thaj chaw tshwj xeeb), kom ntseeg tau tias cov khoom ua tau raws li qhov yuav tsum tau ua.​