Txoj kev tswj cov khoom siv plua plav nws tus kheej-emulsify hauv dej los ntawm kev ntub dej, khi, crusting, foaming, thiab ua npuas ncauj- khi ua. Thaum txau rau hauv cov av saum npoo ntawm txoj kev, lawv txoj kev sib khi zoo sib sau ua ke rau hauv qhov loj dua, cov plua plav tsawg dua - cov khoom sib xyaw ua ke, tsim cov sib tov ruaj khov uas tsis muaj qhov tsis zoo thiab tsis muaj zog. Qhov no tiv thaiv spontaneous combustion thaum ua tiav cov plua plav tiv thaiv, tsim kom muaj txheej tiv thaiv cov plua plav sab nraud thiab lwm yam kab mob.
I. Cov yam ntxwv ntawm cov khoom
- Tsis muaj cov hlau hnyav, cov organic halogen compounds, roj av los ntawm -cov khoom, organic solvents, los yog inorganic ntsev tebchaw, tsis muaj teeb meem rau tib neeg noj qab haus huv.
- Cov ntsiab lus siab ua kom yooj yim rau kev thauj mus los; npaj rau kev siv tom qab dilution rau qhov piv txwv.
- Dej-raws li kev tsim nrog nruab nrab pH, tiv thaiv corrosion ntawm cov khoom siv tshuaj tsuag.
- Thaum qhuav thiab zaj duab xis - tsim, ua insoluble nyob rau hauv dej thiab impervious rau dej puas.
- Tau tshaj txhua yam dej zoo; xav tau cov cuab yeej siv tsawg thiab kev nqis peev tsawg.
- Ua tau zoo txo cov thee noo noo nqus thiab oxidation tus nqi, txo cov kev xav ntawm kev sib tsoo.
- Kev ntub dej nrawm ntawm cov thee nrog lub sijhawm luv luv.
- Khaws cov khoom tiv thaiv ntev ntev - ntawm cov thee txawm tias qhov kub thiab txias.
- Tsis muaj kev cuam tshuam rau cov khoom siv hluav taws xob xws li calorific nqi.
II. Cov chaw thov
- Txoj kev hauv nroog nrog cov tsheb loj
- Txoj kev nyob ib puag ncig cov chaw tsim kho hauv nroog
- Txoj kev thoob plaws lub nroog thaum lub sij hawm qhov ntsuas huab cua siab
- Txoj kev nyob rau hauv ib cheeb tsam uas muaj kuab heev
III. Mechanism ntawm Effect
Dissolved nyob rau hauv dej thiab txau mus rau txoj kev nto, cov khoom zoo khi PM10 thiab PM2.5 hais rau hauv loj aggregates ntawm chelation, tiv thaiv resuspension. Nws cov neeg ua dej ntub dej ua kom muaj kev sib kis tau sai thiab ua tau zoo.
Kev tswj cov plua plav ntawm txoj kev yog cov phooj ywg ib puag ncig, nrog rau txhua yam khoom siv biodegradable thiab tsis yog - pab rau cov pa phem hauv huab cua.
Dawb los ntawm chloride ions, hlau hnyav, thiab cov kuab tshuaj organic, nws tsis yog - lom thiab tsis muaj mob rau tib neeg thaum sib cuag. Nws ua tau zoo txo cov teeb meem hauv txoj kev ib puag ncig, txo qis PM10 concentrations kwv yees li 30% thiab PM2.5 concentrations los ntawm kwv yees li 10%. Cov cuab yeej siv tau yooj yim, siv cov tshuaj tua kab mob uas twb muaj lawm yam tsis muaj nqi ntxiv. Thaum lub caij ntuj no, nws tuaj yeem ua tus de-icing tus neeg sawv cev, txo kev puas tsuaj rau txoj kev thiab cov nroj tsuag ib puag ncig los ntawm cov ntsev chloride.
Los ntawm nws cov dej noo zoo khaws cia thiab plua plav tiv thaiv mechanism, txoj kev plua plav tswj cov khoom lag luam ua rau qeeb cov evaporation tus nqi ntawm cov dej noo noo, ua kom ntev txoj kev hydration. Qhov no txo qis qhov xav tau kev ywg dej tsis tu ncua, yog li tswj xyuas cov plua plav ruaj khov thaum muaj kev txuag dej ntau thiab txo cov nqi tu. Cov kev ua tau zoo li no ua raws li kev coj noj coj ua hauv zej zog rau kev txuag hluav taws xob thiab txo qis emissions.
|
Yam khoom |
Kev tshwm sim |
|
Sodium chloride |
Ntau dua lossis sib npaug li 50% |
|
Phytase |
＜3% |
|
Polyvinyl cawv |
Tsawg dua los yog sib npaug li 10% |
|
Polyethylene glycol |
Tsawg dua lossis sib npaug li 5% |
|
Sodium carboxymethyl cellulose |
Tsawg dua lossis sib npaug li 3% |
|
Hydroxypropyl methylcellulose yog siv |
Ntau dua lossis sib npaug li 10% |
Cim npe nrov: Tuam Tshoj txoj kev plua plav tswj cov khoom lag luam, Tuam Tshoj txoj kev plua plav tswj cov khoom lag luam, cov chaw muag khoom, lub Hoobkas
