Nqus extraction tus nqi thiab roj adsorption
Apr 26, 2019| Nqus extraction tus nqi thiab roj adsorption
Cov ntaub ntawv tuaj yeem nqus thiab yaj cov roj cua hauv cheeb tsam chaw atmospheric. Yog li ntawd, cov ntaub ntawv cia rau hauv qhov chaw yuav maj mam tso cov roj adsorbed rau ntawm cov khoom thiab cov roj yaj ntawm cov khoom nyob rau hauv lub qhov nqus. Qhov tshwm sim no yog hu ua cov pa hluav taws xob ntawm cov khoom, thiab cov pa tawm ntawm ib lub sij hawm twg thiab cheeb tsam yog hu ua cov pa tawm tso tawm. Cov ntaub ntawv sib txawv nyias muaj nyias cov nqi effluent. Txawm tias cov ntaub ntawv sib txawv ntawm cov khoom sib txawv los ntawm ntau yam kev sib tshuam, kev txav ceev, kev siv tshuab, qhov chaw npaug ntawm qhov chaw, ua ntej thiab kho ua ntej nws muab tso rau hauv lub tshuab nqus tsev. Qhov no yog vim li cas cov nqi effluent ntsuas los ntawm ntau tus sau phau ntawv tsis zoo li qub. Thaum xaiv cov pa tawm ntawm cov ntaub ntawv, cov xwm txheej no yuav tsum raug muab suav rau hauv koj tus account. Cov ntaub ntawv uas zoo sib xws yuav tsum tau xaiv kom deb li deb tau. Yog tias tsim nyog, cov pa tawm ntawm cov ntaub ntawv tuaj yeem tshawb xyuas tau.
Cov pa tawm ntawm cov khoom siv yog qhov kub ua haujlwm, thiab nws txoj kev sib txuas yog raws li nram no:
lgq = lgq1-αlgt 及 q = q0exp (-E / RT)
Qhov twg:
q: cov pa tawm qhov pa;
Q0, Q1: tas li;
T: extraction lub sijhawm (extraction lub sijhawm)
E: cov roj tso zis ua kom muaj zog
R: molar roj tas li
T: thermodynamic kub
α : rho tawm tus nqi ntawm qhov ua tau zoo npaum li coefficient
(organic khoom α ≈ 0.5, hlau khoom α ≈ 1)
Molecular xeev thiab atomic state permeation relation rau khoom:
Nondissociative molecular osmosis: q = KA p / d
q = (KA p) / d
Qhov twg:
q: tus nqi ntawm cov roj nkag los ntawm cov phab ntsa saum npoo
P: huab cua siab qhov sib txawv ntawm ob phab ntsa d: phab ntsa tuab
K: permeability coefficient ntawm roj rau cov khoom
A: phab ntsa qhov chaw
IKS PVD, lub tshuab nqus tsev txheej, yog tias koj cov khoom yuav tsum tau degas, kindly qhia rau peb thaum ntxov, peb tuaj yeem ua ib txheej txheej thaum xub thawj.