1. Cov txiaj ntsig tseem ceeb ntawm pob zeb hauv qhov dej ntws thiab lim dej
Multi-Stage Filtration Capacity, Efficient Impurity Interception: Los ntawm kev sib txuaspob zebntawm ntau qhov sib txawv (xws li, 15-30mm coarse gravel rau hauv qab txheej, 5-15mm nruab nrab gravel rau nruab nrab txheej, thiab 2-5mm zoo gravel rau txheej txheej), gradient pom hierarchy tuaj yeem tsim. Cov pob zeb ntxhib ua ntej cuam tshuam cov khoom loj-particle tshem tawm cov khib nyiab (xws li cov khib nyiab thiab cov ceg ntoo tuag), thaum nruab nrab thiab zoo gravel ntxiv lim me me impurities (xws li colloidal hais thiab cov khib nyiab organic), nrog rau kev pom zoo tshaj 85%. Qhov no zoo txo cov load ntawm cov kev kho mob tom ntej, tshwj xeeb tshaj yog haum rau pretreatment ntawm cov dej phwj hauv nroog.
Cov khoom siv tshuaj ruaj khov, Ua kom muaj kev ruaj ntseg dej zoo: Ntuj gravel yog tsim los ntawm cov khoom tsis zoo xws li silica, nrog cov khoom siv tshuaj ruaj khov. Thaum lub sij hawm ntev - kev sib cuag nrog dej, nws yuav tsis tso cov pa phem xws li cov hlau hnyav thiab cov ions tsis zoo rau hauv dej, thiab nws yuav tsis hnov mob nrog cov tshuaj lom neeg hauv dej los tsim cov tshuaj phem. Cov yam ntxwv no tso cai rau nws kom tsis tu ncua kom muaj kev nyab xeeb zoo hauv cov xwm txheej nrog cov dej tsis zoo, xws li kev haus dej ua ntej thiab kev lim dej hauv toj roob hauv pes.
Strong Corrosion Resistance, Adapting to Complex Environments: Gravel muaj kev ua siab ntev rau cov kua qaub- puag ncig. Hauv dej nrog tus nqi pH ntawm 3-11, nws lub cev qauv thiab kev ua haujlwm pom nyob ruaj khov, tsis muaj kev sib cais, huab cua, lossis kev puas tsuaj vim yog cov kua qaub- puag ncig. Txawm hais tias nyob rau hauv kev lag luam acidic wastewater kho los yog cov dej hauv cov dej ntsev-alkali, gravel tuaj yeem ua haujlwm ruaj khov rau lub sijhawm ntev, nrog rau kev pabcuam lub neej ntawm 15-20 xyoo, txo qhov kev saib xyuas thiab hloov cov nqi ntawm cov dej txuag dej.
2. Muaj peev xwm Disadvantages ntawm Gravel Application
Pores Prone to Blockage, Txo Filtration Efficiency: Tom qab siv sijhawm ntev -, tshem tawm cov khib nyiab thiab cov khoom colloidal hauv dej yuav maj mam ua raws li qhov pores ntawm gravel. Yog tias tsis ua haujlwm raws sijhawm, qhov no yuav ua rau lub qhov dej txhaws, ua rau cov dej ntws qeeb qeeb, thiab txo cov kev pom zoo los ntawm ntau dua 85% thaum pib mus rau qis dua 50%. Nyob rau hauv cov xwm txheej hnyav, nws yuav ua rau muaj teeb meem xws li cov dej ntim hauv lub cev thiab lub zog ntau dhau, cuam tshuam rau kev ua haujlwm ntawm cov dej txuag dej.
Kev pheej hmoo zais ntawm cov khoom tawg yooj yim, cuam tshuam rau kev ua haujlwm zoo: Pob zeb los ntawm qee qhov chaw geological (xws li pob zeb uas muaj carbonates lossis sulfates) tuaj yeem muaj cov khoom tawg yooj yim. Nyob rau hauv lub sij hawm ntev - immersion los yog dej scouring, cov tshuaj no yuav yaj maj mam, ua rau cov kev hloov nyob rau hauv dej pH nqi los yog nce ion concentration. Yog tias siv hauv kev lim dej los yog kev kho dej tsis zoo hauv kev lag luam, nws yuav muaj kev cuam tshuam tsis zoo rau cov dej tom qab.
Tsawg Porosity ntawm Smooth Particles, Limiting Filtration Effect: Smooth gravel formed by natural water scouring has high adhesion of particles, with a porosity of only 30%-35% (qis dua 40%-45% angular gravel). Qhov qis porosity tsis tsuas yog txwv cov dej ntws tab sis kuj txo qhov impurity adsorption qhov chaw, ua rau muaj peev xwm pom tsis muaj zog, uas yog qhov nyuaj rau kev ua kom tau raws li qhov xav tau ntawm cov dej ntws siab thiab siab precision (xws li kev lag luam circulating dej pom).
3. Lub Hom Phiaj Txhim Kho Cov Txheej Txheem rau Kev Tsis Zoo ntawm Kev Siv Pob Zeb
Tsim Multi-Level Gradation, Optimize Filtration Structure: Raws li cov kev xav tau tshwj xeeb pom, txais yuav qhov "coarse-medium-fine" multi-level gradation scheme. Piv txwv li, nteg 20-30mm coarse gravel rau hauv qab txheej (qhov pores loj, ceev txaus txaus, cuam tshuam loj impurities), 10-20mm nruab nrab gravel rau nruab nrab txheej (hloov pom), thiab 3-10mm zoo gravel rau saum npoo (zoo pom). Cov qauv no tsis tsuas yog ua kom cov dej ntws zoo nkaus xwb tab sis kuj ua kom muaj kev cuam tshuam tsis zoo, ncua qhov pore blockage tus nqi.
Restore Restore Filtration Capacity: Yuav kom daws tau qhov teeb meem ntawm qhov pore blockage, yuav tsum tsim kom muaj lub tshuab rov qab ua haujlwm tsis tu ncua. Rau cov dej hauv nroog lossis me me - teev cov dej kho dej, siab - cov dej siab tuaj yeem siv rov qab ntxuav cov gravel txheej 1-2 zaug hauv ib lub lis piam, siv lub zog cuam tshuam ntawm cov dej ntws los ntws tawm cov impurities hauv qhov pores; Kev txuag dej loj hauv cov dej num (xws li cov chaw tsim dej thiab cov chaw kho dej hauv tsev) tuaj yeem nruab nrog cov cuab yeej siv rov qab tsis siv neeg, siv kev sib xyaw ua ke ntawm "dej yaug + cua yaug" txhawm rau txhim kho kev ua haujlwm tu thiab kho kom zoo dua gravel filtration efficiency.
Kev Ntsuas Ua Ntej, Tshem Tawm Cov Khoom Uas Muaj Teeb Meem: Ua ntej siv gravel, nws cov tshuaj muaj pes tsawg leeg yuav tsum tau kuaj hauv chav kuaj, tsom rau cov ntsiab lus ntawm cov hlau hnyav (xws li txhuas thiab cadmium) thiab cov ntsev soluble (xws li sulfates thiab carbonates), kom ua raws li "Quality Standard for Filter Media in Water Conservancy Project". Yog tias siv rau cov dej haus- ntsig txog kev pom, yuav tsum kuaj ntxiv cov ntsiab lus ntawm cov organic teeb meem kom tsis txhob siv cov pob zeb uas muaj qhov pheej hmoo ntawm cov khoom tawg, ua kom muaj kev nyab xeeb ntawm cov dej los ntawm qhov chaw.
Ua ke nrog Artificial Filter Media, Txhim Kho Kev Pom Zoo Pom Zoo: Txhawm rau daws qhov porosity tsawg thiab tsis txaus pom qhov tseeb ntawm cov pob zeb du, pob zeb tuaj yeem siv ua ke nrog cov khoom siv lim xov xwm (xws li quartz xuab zeb, activated carbon, thiab ceramsite). Piv txwv li, nteg ib txheej 5-10cm tuab txheej ntawm quartz xuab zeb (los txhim kho cov nyhuv pom zoo) saum lub gravel lim txheej, thiab ib txheej ntawm cov pa roj carbon activated (kom adsorb organic teeb meem thiab tsw) hauv qab no, tsim "gravel + artificial filter media" composite filtration system. Qhov no tsis yog tsuas yog khaws cia lub durability ntawm gravel tab sis kuj ua tau raws li qhov yuav tsum tau ua kom pom tseeb.