Daim ntawv thov ntawm AO + Fenton Reaction Tank + BAC Cov txheej txheem ua ke los kho cov dej ntws tawm sab nraud hauv cov nroj tsuag hluav taws xob
Lub circulating dej system yog ib qho tseem ceeb cua txias system uas yuav tsum tau rau cov fais fab kev lag luam. Nws lub hauv paus ntsiab lus suav nrog kev qhia cov dej txias rau hauv lub condenser rau kev ncig mus tas li kom txias cov units. Lub kaw lus ua tiav qhov sib npaug los ntawm kev tawg tas mus li thiab ntxiv nrog cov dej tshiab. Ib feem ntawm cov dej nyob rau hauv lub circulating dej system ua rhuab thiab generates chav, uas yog tawm mus rau cov huab cua los ntawm sab saum toj, thaum lwm qhov yog tawm mus rau ib puag ncig raws li circulating sab nraud ntws los ntawm lub fais fab nroj tsuag.
Tam sim no, feem ntau cov chaw tsim hluav taws xob hauv tsev siv cov txheej txheem "pretreatment + ultrafiltration + thim rov qab osmosis" rau kev kho cov dej ntws tawm sab nraud. Txawm li cas los xij, cov txheej txheem ultrafiltration thiab thim rov qab osmosis muaj ntau yam teeb meem: (1) Cov txheej txheem pretreatment tsis txaus ua rau cov teebmeem ua ntej tsis zoo, uas txo cov kev kho mob ntawm cov txheej txheem tom ntej. (2) Thaum lub sijhawm ua haujlwm, daim nyias nyias feem ntau cuam tshuam los ntawm cov pa phem, xav kom cov neeg ua haujlwm ua cov tshuaj ntxuav cov membrane nquag, ua kom lub neej ua haujlwm luv luv, yuav tsum tau hloov daim nyias nyias, thiab ua rau cov nqi hloov pauv siab. Scale inhibitors thiab corrosion inhibitors precipitate thaum lub sij hawm ua hauj lwm, clogging cartridge lim thiab thim rov qab osmosis daim nyias nyias, ua rau nquag membrane tshuaj ntxuav thiab lim cartridge hloov thaum lub sij hawm ua hauj lwm. Tsis tas li ntawd, scale inhibitors thiab corrosion inhibitors yooj yim hnov mob nrog siab -valent ions, cuam tshuam rau kev tsim floc, ua rau cov coagulation tsis zoo. (3) Membrane systems xav tau kev tsim kho siab thiab xav tau kev txawj ntse los ntawm cov neeg ua haujlwm thaum lub sijhawm ua haujlwm thiab tu.
Ib qho kev kho dej khib nyiab ntawm ib qho chaw tsim hluav taws xob tau txais AO + Fenton cov tshuaj tiv thaiv tank + BAC cov txheej txheem ua ke los kho cov dej ntws tawm sab nraud. Cov txheej txheem no tsis tsuas yog ua tiav cov txiaj ntsig zoo thiab kev ua haujlwm yooj yim xwb, tab sis kuj tseem txo cov nqi ntawm cov nroj tsuag thiab tiv thaiv ib puag ncig ecological ib puag ncig.
1 Kev Ntsuam Xyuas Dej Zoo
Cov dej ntws tawm sab nraud los ntawm cov chaw tsim hluav taws xob feem ntau yog los ntawm cov dej siv rau cov cua txias los ntawm kev sib txuas mus tas li hauv cov condenser. Hom dej khib nyiab no yog tus cwj pwm los ntawm cov organic teeb meem tsawg thiab tsis muaj biodegradability. Tsis tas li ntawd, txhawm rau tiv thaiv cov raj xa dej thaum lub sijhawm rov ua dej txias, lub tshuab hluav taws xob tsis tu ncua ntxiv cov nplai inhibitors thiab corrosion inhibitors rau cov dej ntws, uas ua rau muaj cov ntsiab lus nitrogen ntau hauv cov dej txias. Lwm cov yam ntxwv muaj xws li salinity siab, siab concentrations siab -valent ions xws li Fe³⁺, Ca²⁺, Mg²⁺, Al³⁺, thiab kuj siab hardness.
Raws li cov yam ntxwv ntawm cov dej khib nyiab no, cov chaw kho dej khib nyiab ua ntej tau teeb tsa lub tank AO kom tshem tawm ammonia nitrogen thiab tag nrho nitrogen los ntawm cov dej khib nyiab. Tom qab ntawd, Fenton cov tshuaj tiv thaiv tank tau teeb tsa tom qab cov txheej txheem kev kho mob lom neeg los tsim cov oxidants muaj zog los ntawm cov tshuaj tiv thaiv ntawm hydrogen peroxide thiab ferrous sulfate, decomposing recalcitrant organic tebchaw rau hauv yooj yim degradable sawv daws yuav thiab txo cov tshuaj oxygen thov thiab tag nrho phosphorus. Thaum kawg, lub inclined tube sedimentation tank thiab BAC tank tau siv los tshem tawm SS thiab ammonia nitrogen, ua tiav kev ua raws.
2 Project Overview
2.1 Flow Rate thiab Dej Zoo
Tus nqi ntws yog 220 m³ / h. Cov dej muaj txiaj ntsig zoo tau raug txiav txim siab raws li kev soj ntsuam cov ntaub ntawv, thiab cov dej ntws zoo yuav tsum ua raws li cov qauv kev tso tawm Class A ntawm "Kev Tso Cai Rau Cov Dej Num Rau Kev Kho Dej Hauv Nroog" (GB18918-2002). Raws li qhia hauvTable 1, cov dej khib nyiab zoo hauv qhov project no yog tus cwj pwm los ntawm CODcr siab, tag nrho cov nitrogen, tag nrho cov phosphorus, thiab SS, nrog tsawg ammonia nitrogen thiab tag nrho phosphorus.
| Table 1 Cov dej muaj txiaj ntsig zoo thiab muaj txiaj ntsig zoo | ||
| Parameter | Cov dej muaj txiaj ntsig zoo / (mg / L) | Cov dej tsis zoo / (mg / L) |
| CODcr | Tsawg dua lossis sib npaug li 240 | Tsawg dua los yog sib npaug li 50 |
| BOD ₅ | Tsawg dua los yog sib npaug li 20 | Tsawg dua los yog sib npaug li 10 |
| Tag nrho Nitrogen (TN) |
Tsawg dua los yog sib npaug li 90 | Tsawg dua los yog sib npaug li 15 |
| Tag nrho phosphorus (TP) |
Tsawg dua los yog sib npaug 2 | Tsawg dua los yog sib npaug li 0.5 |
| Ammonia Nitrogen (NH₃-N) |
Tsawg dua los yog sib npaug li 0.5 | Tsawg dua los yog sib npaug li 5 |
| Suspended Khoom (SS) |
Tsawg dua los yog sib npaug li 200 | Tsawg dua los yog sib npaug li 10 |
2.2 Cov Kev Sib Tw Tseem Ceeb ntawm Txoj Haujlwm
Cov dej khib nyiab hauv qhov project no yog circulating sab nraud tawm los ntawm lub hwj chim cog. Cov teeb meem tseem ceeb hauv kev kho mob yog cov pa phem xws li CODcr, tag nrho phosphorus, thiab tag nrho cov nitrogen hauv cov dej khib nyiab.
(1) Cov dej khib nyiab muaj qhov sib piv B / C tsawg. Thaum lub sijhawm ua haujlwm tiag tiag ntawm txoj haujlwm no, tus neeg muaj peev xwm muaj peev xwm muaj qhov tseem ceeb ntawm cov organic teeb meem uas nyuaj rau biodegrade, nrog rau B / C piv ntawm kwv yees li 0.08, uas poob rau hauv qhov nyuaj - rau - biodegrade qeb. Cov txheej txheem kev kho mob rau txoj haujlwm no yuav tsum tau koom nrog kev ntsuas oxidation siab heev kom nce B / C piv thiab yog li txhim kho biodegradability. Qhov no sawv cev rau qhov kev sib tw tseem ceeb hauv kev kho cov dej khib nyiab rau qhov project no.
(2) Cov dej khib nyiab muaj qib siab ntawm macromolecular organic compounds, uas nyuaj rau tshem tawm los ntawm kev kho mob lom neeg ib leeg. Qhov no yog lwm qhov kev sib tw tseem ceeb hauv kev kho cov dej khib nyiab rau qhov project no.
(3) Txhawm rau txo cov nqi khiav lag luam thiab txhim kho qhov project efficiency, tus tsim yuav tsum txo tus naj npawb ntawm cov twj siv los nqa cov dej khib nyiab thiab cov sludge, thiab ua kom siv ntau tshaj plaws ntawm lub ntiajteb txawj nqus ntws. Qhov no sawv cev rau lub hom phiaj tseem ceeb rau txoj haujlwm no thiab tseem ceeb heev rau kev txo cov nqi khiav haujlwm.
2.3 Kev Kho Mob
(1) Cov txheej txheem Pretreatment. Cov dej khib nyiab hauv qhov project no muaj ntau hom kev ua qias tuaj, muaj qhov sib xyaw ua ke, thiab nthuav tawm cov pH txawv txawv, ua rau kev kho mob nyuaj thiab kim. Lub tank sib npaug tau muab cais rau hauv cov txheej txheem pretreatment kom homogenize thiab sib npaug ntawm qhov ntws, txo cov kev cuam tshuam ntawm cov dej zoo hloov pauv ntawm cov dej khib nyiab.
(2) Kev kho mob lom. Cov txheej txheem yuav tsum tau ua kom tiav, paub tab, ua haujlwm tau zoo, yooj yim rau kev khiav lag luam, muaj kev txawj ntse, xav tau qhov chaw tsawg, thiab muaj cov nqi khiav lag luam tsawg. Cov txheej txheem "AO" raug xaiv rau qhov project no. Cov txheej txheem no tau siv dav hauv Suav teb, suav nrog cov thev naus laus zis thiab paub tab, kev ua kom huv huv siab, kev tsim khoom yooj yim, tsis tshua muaj sludge ntau lawm, thiab txhim khu kev qha effluent zoo.
(3) Kev kho mob siab heev. Cov txheej txheem "Fenton oxidation + inclined tube sedimentation tank + BAC" txheej txheem raug xaiv raws li cov txheej txheem kho mob siab heev rau txoj haujlwm no. Cov txheej txheem no siv cov muaj zog oxidizing dawb radicals tsim los ntawm Fenton cov tshuaj tiv thaiv rau oxidize thiab decompose residual recalcitrant organic tebchaw, hloov mus rau hauv cov organic tebchaw uas yuav degraded los ntawm tej yam kab mob. Tib lub sijhawm, nws txhim kho phosphorus tshem tawm los ntawm kev ntsuas tshuaj, ua kev tiv thaiv kom ntseeg tau tias tag nrho cov phosphorus ua raws. Tom qab ntawd, kev tshem tawm cov organic teeb meem yog ua tiav los ntawm sedimentation nyob rau hauv inclined tube sedimentation tank thiab adsorption thiab biodegradation nyob rau hauv lub BAC tank, raws li cov qauv tso tawm.
(4) Sludge kev kho mob. Lub sludge thickening tank muaj peev xwm khaws cia, tsis muaj hluav taws xob siv, tsis muaj nqi khiav lag luam, thiab kev ua haujlwm yooj yim. Cov ntsia hlau xovxwm muaj cov cuab yeej siv tsawg thiab cov nqi tu, nyob hauv qhov chaw tsawg, siv tshuaj tsawg, ua suab nrov, thiab ua tiav cov ncuav mog qab zib qhuav ntawm 20% thiab 25%, ua kom pom kev ua haujlwm zoo dewatering.
2.4 Tus Txheej Txheem Flow Diagram
Cov chaw kho dej khib nyiab tau txais cov txheej txheem "AO tank + semiconductor sedimentation tank + Fenton cov tshuaj tiv thaiv tank + inclined tube sedimentation tank + BAC + tshuaj tua kab mob tank" txheej txheem, raws li qhia hauvDaim duab 1.
2.5 Cov Txheej Txheem thiab Kev Ua Haujlwm
(1) Equalization tank. Txo qhov cuam tshuam ntawm cov organic load hloov pauv ntawm cov txheej txheem kho tom ntej, tiv thaiv kev hloov pauv sai ntawm cov dej ntws los yog cov dej tsis zoo los ntawm kev cuam tshuam rau cov txheej txheem kev kho dej hauv qab (kev lom neeg lossis tshuaj lom neeg), thiab tswj xyuas qhov chaw ruaj khov rau cov kab mob hauv cov txheej txheem kev kho mob lom neeg thiab cov tshuaj tiv thaiv ib puag ncig hauv cov txheej txheem kho tshuaj. Cov twj tso kua mis submersible tau nruab rau hauv lub tank rau nqa cov dej khib nyiab mus rau lub tank anoxic.
(2) AO tank. Lub tank AO yog nruab nrog cov khoom ntim sib xyaw ua ke thiab cov khoom siv submersible. Kev sib xyaw ua ke muab qhov chaw nyob txaus rau denitrifying microorganisms thiab aerobic microorganisms, thaum lub submersible mixers xyuas kom muaj kev sib faib ntawm cov organic teeb meem hauv dej. Hauv lub tank anoxic, feem ntau ntawm ammonia nitrogen raug tshem tawm. Nyob rau hauv lub tank aerobic, feem ntau cov organic teeb meem raug tshem tawm, ammonia nitrogen yog hloov mus rau nitrate nitrogen, thiab ib puag ncig aerobic yog tsim rau phosphorus - tsub kom cov kab mob mus uptake phosphorus. Cov phosphorus- nplua nuj sludge yog thaum kawg tshem tawm nyob rau hauv lub thib ob sedimentation tank li sludge.
(3) Secondary sedimentation tank. Secondary sedimentation tank yog nruab nrog ib tug taug kev choj scraper thiab sludge twj. Tom qab sedimentation, sludge yog scraped rau hauv sludge hopper los ntawm tus choj mus ncig teb chaws scraper thiab ces pumped mus rau lub sludge tank los ntawm sludge twj, txo SS nyob rau hauv cov dej khib nyiab.
(4) Fenton cov tshuaj tiv thaiv tank. Thaum qis pH, H₂O₂ yog catalytically decomposed los ntawm Fe²⁺ los tsim · OH, uas muaj peev xwm oxidize feem ntau cov organic tebchaw nyob rau hauv dej. Nws tseem tuaj yeem ua tiav oxidize cov organic tebchaw uas nyuaj rau kho nrog cov tshuaj lom neeg lossis cov tshuaj oxidation cov tshuaj tiv thaiv. · OH reacts nrog cov organic tshuaj nyob rau hauv cov dej khib nyiab, decomposing lawv mus rau hauv CO₂ thiab dej, txo cov concentration ntawm nyuaj- rau - kho cov organic tebchaw nyob rau hauv cov dej khib nyiab thiab ua rau cov B / C ratio, yog li txhim kho cov kev kho mob efficiency ntawm lub tom ntej BAC tank.
(5) Inclined tube sedimentation tank. Lub inclined raj ntim rau hauv inclined tube sedimentation tank aggregates tshem tawm cov khib nyiab thiab flocs tsim nyob rau hauv Fenton cov tshuaj tiv thaiv tank rau ntawm qhov chaw ntawm cov hlab inclined. Los ntawm lub ntiajteb txawj nqus, sludge settles nyob rau hauv qab thiab yog pumped mus rau lub sludge thickening tank los ntawm sludge twj, txo SS nyob rau hauv cov dej khib nyiab.
(6) Lub tank nruab nrab. Xyuas kom ruaj khov dej khib nyiab zoo thiab txaus tus nqi, lav zoo ib yam thiab ruaj khov pom nyob rau hauv cov pa roj carbon lim dej lom thiab txhim kho qhov pom kev ua haujlwm ntawm BAC tank.
(7) BAC tank thiab backwash tank. Lub tank BAC muaj cov pa roj carbon lim dej, uas muaj peev xwm adsorption muaj zog, lim cov khoom tsis zoo thiab cov kab mob hauv dej thiab tshem tawm cov khib nyiab pov tseg. Lub tank rov qab yog nruab nrog cov twj tso kua mis rov qab los ntxuav cov lim dej hauv cov lim dej, tiv thaiv kev txhaws.
(8) Disinfection tank. Sodium hypochlorite yog ntxiv rau lub tank kom tua cov kab mob phem hauv dej, txo cov kab mob tsis zoo ntawm cov dej khib nyiab.
(9) Sludge tank thiab ntsia hlau xovxwm. Sludge los ntawm AO tank, theem nrab sedimentation tank, inclined tube sedimentation tank, thiab BAC tank yog pumped rau hauv lub sludge tank los ntawm sludge twj. Tom qab thickening, cov sludge yog pumped rau hauv cov ntsia hlau xovxwm los ntawm sludge twj (nrog cationic PAM ntxiv thaum dewatering). Los ntawm cov sludge thickening tank thiab ntsia hlau xovxwm, cov dej noo ntawm cov sludge yog txo kom tsawg, yooj yim rau kev pov tseg.
2.6 Cov yam ntxwv ntawm kev sib xyaw ua ke
(1) Lub tank AO muaj kev tshem tawm zoo rau cov organic teeb meem, ammonia nitrogen, thiab lwm yam pa phem hauv cov dej khib nyiab. Nyob rau hauv lub tank anoxic, cov kab mob haus cov organic tebchaw uas muaj C los ntxiv lawv lub zog thiab txo cov nitrate nitrogen rov qab los ntawm lub tank aerobic rau N₂, ua kom tiav denitrification thaum tseem tshem tawm ib feem ntawm BOD₅. Hydrolysis cov tshuaj tiv thaiv kuj tshwm sim hauv lub tank anoxic, nce B / C piv ntawm cov dej khib nyiab thiab txhim kho nws cov biodegradability. Nyob rau hauv lub tank aerobic, feem ntau ntawm cov organic teeb meem thiab phosphorus raug tshem tawm, thiab ammonia nitrogen hloov mus rau nitrate nitrogen.
(2) Fenton cov tshuaj tiv thaiv tank siv zog oxidizing Fenton reagents (Fe²⁺ thiab H₂O₂ sib xyaw rau hauv ib qho kev faib ua feem) los tsim cov oxidizing zoo heev · OH, uas muab kev kho oxidation zoo. Cov tshuaj tiv thaiv CO₂ thiab dej tsis yog - lom thiab tsis muaj mob. Cov txheej txheem muaj cov yam ntxwv ntawm kev ua haujlwm zoo, kev kho mob qis thiab tus nqi ntawm chav tsev kub, kev ua haujlwm siab oxidation, tsis tshua muaj nqi kho mob, thiab tuaj yeem txo qhov nyuaj ntawm kev kho dej khib nyiab.
(3) Los ntawm kev pom kev lag luam, npaj lub tank AO ua ntej thiab tom qab ntawd Fenton cov tshuaj tiv thaiv tank txo cov nqi khiav lag luam piv rau kev npaj Fenton cov tshuaj tiv thaiv tank ua ntej thiab tom qab ntawd AO tank. Yog tias Fenton cov tshuaj tiv thaiv tank tau muab tso ua ntej thiab tom qab ntawd lub tank AO, cov organic load ntawm AO tank yuav nce, yuav tsum tau kho siab -valent organic molecules tsim los ntawm oxidation ntawm recalcitrant organic compounds nyob rau hauv Fenton cov tshuaj tiv thaiv tank. Qhov no yuav tsum tau ntxiv cov pa roj carbon ntau ntau thaum lub sijhawm ua haujlwm, ua kom cov pa roj carbon ntau ntxiv cov nqi thiab cov nqi khiav haujlwm. Teem lub AO lub tank ua ntej thiab tom qab ntawd Fenton cov tshuaj tiv thaiv tank tso cai rau kev kho cov organic teeb meem nyob rau hauv pem hauv ntej seem thiab recalcitrant organic teeb meem nyob rau hauv seem rov qab, txo cov nqi khiav lag luam thaum txo qis cov organic teeb meem nyob rau hauv cov dej khib nyiab.
(4) Kev txiav txim siab COD siab hauv cov neeg muaj peev xwm, BAC tau raug xaiv los ua cov txheej txheem kev kho mob siab ntxiv kom txo tau cov organic teeb meem hauv cov dej khib nyiab. Cov pa roj carbon activated muaj thaj chaw loj tshwj xeeb, tso cai rau cov organic teeb meem thiab cov kab mob me me ua raws li nws, txuas lawv lub sijhawm sib cuag thiab yog li txhim kho microbial decomposition efficiency. Ntxiv nrog rau cov pa roj carbon activated, lub tank tseem tau nruab nrog lub tshuab aeration, uas tsis yog tsuas yog ua kom lub zog ceev ntawm cov organic teeb meem hauv dej, muab cov pa oxygen rau cov kab mob, thiab txhim kho kev ua kom huv si, tab sis kuj txhawb kev sib cuag ntawm cov kab mob uas raug tshem tawm thiab cov khoom siv organic hauv lub zog, txhim kho kev kho mob ntawm cov kab mob uas raug tshem tawm.
2.7 Cov Txheej Txheem thiab Cov Txheej Txheem
Cov txheej txheem units thiab parameters rau qhov project no muaj nyob rau hauvRooj 2.
| Table 2 Process Unit Parameters | ||||
| Chav tsev | HRT (h) | Dej zoo Qhov tob (m) |
Siv tau ntim (m3) |
Lus hais |
| Equalization Tank | 1.7 | 5.5 | 378 | |
| Anoxic Tank | 15.3 | 6.1 | 3355 | |
| Aerobic Tank | 5.1 | 6 | 1122 | |
| Secondary Sedimentation Tank | / | 5.6 | / | Nto Loading Rate: 1.05 m3/(m2·h) |
| Fenton Reaction Tank | 4 | 5.5 | 1072.5 | |
| Inclined Tube Sedimentation Tank |
/ | 5.1 | / | Nto Loading Rate: 1.13 m3/(m2·h) |
| Nruab nrab Tank | 0.2 | 5.1 | 51 | |
| BAC Tank | / | 5.5 | 275 | Dej Backwash Intensity: 25 m3/(m2·h) |
| Cua Backwash Intensity: 40 m3/(m2·h) |
||||
| Backwash Tank | 1.7 | 5.5 | 374 | |
| Disinfection Tank | 0.54 | 5.4 | 118.8 | |
3 Kev Ua Haujlwm Zoo
Qhov project no tau txais kev lees paub nyob rau lub Rau Hli 2022, nrog rau tag nrho cov pa phem qhia hauv cov kua dej ua tau raws li cov qauv tso tawm, qhia hauvTable 3.
| Table 3 Kev Ua Haujlwm Zoo | ||
| Parameter | Monitored Effluent Indicator / (mg / L) |
Design Effluent Indicator / (mg / L) |
| CODcr | 36–40 | Tsawg dua los yog sib npaug li 50 |
| BOD ₅ | 7–9 | Tsawg dua los yog sib npaug li 10 |
| Tag nrho Nitrogen (TN) |
11–13.5 | Tsawg dua los yog sib npaug li 15 |
| Tag nrho phosphorus (TP) |
0.2–0.4 | Tsawg dua los yog sib npaug li 0.5 |
| Ammonia Nitrogen (NH₃-N) |
0.3–0.5 | Tsawg dua los yog sib npaug li 5 |
| Suspended Khoom (SS) |
5–8 | Tsawg dua los yog sib npaug li 10 |
4 Cov Nqi Ua Haujlwm
Tag nrho cov nqi khiav hauj lwm rau qhov project no yog qhia hauvTable 4.
| Table 4 Tag Nrho Cov Nqi Ua Haujlwm | |||||
| Tsis muaj. | Tus nqi | Nqi /(RMB / hli) |
Tus nqi kho mob / (RMB / ton) |
Kev kho muaj peev xwm /(m3/h) |
Lus hais |
| 1 | Tus nqi hluav taws xob | 62,944.27 | 0.4 | 220 | Muab xam raws li 30 hnub hauv ib lub hlis |
| 2 | Tus nqi dej | 6,849.75 | 0.04 | ||
| 3 | Tus nqi tshuaj | 272,776.01 | 1.72 | ||
| 4 | Tus Nqi Ua Haujlwm | 27,000.00 | 0.17 | ||
| 5 | Tag nrho | 369,570.03 | 2.33 | ||
5 Economic, Social, thiab Environmental Benefits
5.1 Cov txiaj ntsig nyiaj txiag
Qhov kev siv ntawm qhov project no muaj txiaj ntsig zoo rau kev lag luam. Ua ntej, nws txo cov nqi lag luam. Yog tias tsis muaj qhov project no, kev kho cov dej ntws tawm sab nraud los ntawm cov chaw tsim hluav taws xob yuav xav tau outsourcing rau cov chaw tsim nyog. Vim lub siab concentration thiab loj ntim ntawm cov circulating sab nraud ntws, outsourcing kev kho mob thiab cov nqi tsheb thauj mus los yog siab. Kev ua tsis tiav kev kho mob rau cov chaw tsim nyog yuav ua rau raug nplua los ntawm cov tub ceev xwm. Yog li ntawd, qhov kev siv ntawm qhov project no txo cov nqi kho cov dej khib nyiab hauv kev lag luam thiab tej zaum yuav raug nplua. Qhov thib ob, nws txo cov nqi kev sib raug zoo. Yog tias cov dej ntws tawm sab nraud raug tshem tawm tsis raug kho, qhov ua rau dej paug yuav txo qis kev ua liaj ua teb thiab nuv ntses, cuam tshuam rau kev loj hlob ntawm kev ua liaj ua teb thiab nuv ntses. Yog li, qhov kev siv ntawm qhov project no txo cov nqi kev sib raug zoo. Thib peb, nws txo qis cov neeg nyob hauv cov nqi kho mob. Yog tias tsis muaj qhov project no, ib puag ncig hauv av yuav tsis muaj kuab lom, ua rau muaj kev phom sij rau cov neeg nyob ib puag ncig kev noj qab haus huv thiab nce lawv cov nqi kho mob. Yog li ntawd, qhov kev siv ntawm qhov project no tsis ncaj qha txo cov neeg nyob hauv cov nqi kho mob. Thaum kawg, nws nce nqi av. Qhov kev siv ntawm qhov project no txo cov pa phem los ntawm cov chaw tsim hluav taws xob lub zog ntws tawm sab nraud, ua rau thaj av ib puag ncig zoo nkauj rau kev nqis peev thiab kev tsim kho lub Hoobkas.
5.2 Kev Pabcuam Tibneeg
Kev ua tiav ntawm qhov project no muaj txiaj ntsig zoo rau kev sib raug zoo. Ua ntej, nws tiv thaiv cov dej nyob ib puag ncig. Kev tso tawm ncaj qha ntawm cov dej ntws tawm sab nraud nrog qhov muaj siab ntawm cov khoom tsis zoo yuav ua rau muaj kev puas tsuaj loj rau cov dej nyob ib puag ncig thiab cuam tshuam rau cov dej hauv ecosystem. Qhov thib ob, nws tiv thaiv kev noj qab haus huv ntawm cov neeg nyob ze thiab txhim kho lawv lub neej zoo. Cov organic teeb meem siab concentration nyob rau hauv cov dej ntws tawm sab nraud yuav ua rau cov dej ntws los ua xim dub thiab tsw ntxhiab yog tias tso tawm. Tsis tas li ntawd, nws yuav cuam tshuam rau cov dej zoo, ua rau nws tsis tuaj yeem ua rau cov tsiaj hauv dej xws li ntses ciaj sia, ua rau muaj pa phem - ntses tsw thiab cuam tshuam rau ib puag ncig thiab kev ua neej zoo ntawm cov neeg nyob ib puag ncig. Yog li ntawd, qhov kev siv ntawm qhov project no zoo heev tiv thaiv kev noj qab haus huv ntawm cov neeg nyob ze.
5.3 Kev Pabcuam Ib puag ncig
Qhov kev siv ntawm qhov project no txo qis cov pa phem ntawm cov dej nyob ib puag ncig los ntawm cov chaw tsim hluav taws xob cov dej ntws tawm sab nraud thiab tiv thaiv qhov chaw nyob ntawm cov neeg nyob ze. Nws txo CODcr txhua xyoo los ntawm kwv yees li 385 tons, BOD₅ los ntawm kwv yees li 23 tons, TN los ntawm kwv yees li 150 tons, TP los ntawm kwv yees li 3 tons, thiab SS los ntawm kwv yees li 370 tons.
6 Kev xaus
Qhov project rooj plaub no qhia tau hais tias AO + Fenton cov tshuaj tiv thaiv tank + BAC ua ke cov txheej txheem zoo kho cov pa phem hauv kev ntws tawm sab nraud los ntawm cov chaw tsim hluav taws xob, ua tiav cov dej ntws ruaj khov uas ua tau raws li cov qauv tso tawm. CODcr txo mus txog 85%, tag nrho nitrogen txo mus txog 87%, thiab tag nrho phosphorus txo mus txog 90%. Txawm hais tias tshem tawm cov nqi rau BOD₅ thiab ammonia nitrogen tsis siab vim lawv cov kev cuam tshuam qis, lawv tseem ua tau raws li cov qauv. Qhov no qhia tau hais tias AO + Fenton cov tshuaj tiv thaiv tank + BAC ua ke cov txheej txheem ua tiav cov txiaj ntsig kev kho mob tseem ceeb thiab cov dej ntws zoo heev rau cov nroj tsuag hluav taws xob ntws tawm sab nraud. Cov txheej txheem ua ke no tuaj yeem ua tiav qib siab ntawm automation, muaj cov kev xav tau qis, thiab muaj kev ua haujlwm yooj yim thiab kev tswj hwm. Nws muab cov ntaub ntawv tseem ceeb rau lwm cov dej num kho cov dej ntws tawm sab nraud los ntawm cov chaw tsim hluav taws xob thaum xa cov txiaj ntsig tseem ceeb ntawm kev lag luam, kev sib raug zoo, thiab ib puag ncig, tuav qhov tseem ceeb rau kev txhim kho kom ruaj khov thiab kev ua haujlwm ntawm cov nroj tsuag hluav taws xob.