Ruwa yana ɗaya daga cikin mafi mahimmancin kadarorin a cikin ayyukan masana'antu da aikin gona. Ko kuna sarrafa tafkin ban ruwa na gonar inabin ko kushin leach don ma'adinan tagulla, adana ruwan a cikin tsarin ajiya yana da mahimmanci don ingantaccen aiki da sarrafa farashi.
Koyaya, buɗaɗɗen tsarin ajiyar ruwa suna da rauni a zahiri. Ba kamar tankunan da aka rufe ba, manyan tafkunan ruwa suna fallasa ga abubuwa da ƙasa a ƙarƙashinsu. Sau da yawa muna ganin masu aiki suna yin famfo dubunnan lita kullum don kawai kiyaye matakan, galibi ba su san cewa suna yin asarar ƙarar girma ta tashoshi marasa ganuwa ba.
Idan kana gudanar da wani Bude Tsarin Adana Ruwa, da alama kuna yakar abokan gaba biyu: Evaporation da Duba shafi.
Duk da yake sau da yawa yanayi ne ke faɗar ƙawance, seepage gazawar tsari ce wacce za a iya ƙirƙira ta daga ma'auni. Wannan jagorar ya bayyana dalilin da yasa asarar ruwa ke faruwa da kuma yadda tsarin suturar ƙwararrun ƙwararrun ke ba da mafita mafi inganci don riƙewa.
Fahimtar Asarar Ruwa a Buɗewar Tsarin Ajiye Ruwa
Buɗaɗɗen tafki da tafkuna sune ma'auni don adana ruwa mai girma saboda suna da tsada don ginawa. Duk da haka, girman girmansu da bayyanar su yana sa su zama masu sauƙi ga abubuwan muhalli da yanayin ƙasa.
Lokacin da muka yi nazarin asarar ruwa a cikin tafki, muna duban hulɗar tsakanin ruwan saman da ke sama da ƙasa a ƙasa.
- saman: Ruwan yana fuskantar hasken rana, iska, da zafin yanayi.
- Ƙarƙashin ƙasa: Ruwan yana haifar da matsa lamba na hydrostatic akan ƙasa, yana ƙoƙarin nemo hanyar ƙasa.
A cikin yankuna da yawa, musamman a yankunan busasshiyar noma ko wuraren hakar ma'adinai masu nisa, ba a sarrafa su asarar ruwa zai iya rage ingantaccen ƙarfin tsarin da 30% ko fiye a kowace shekara. Wannan yana tilasta wa masu aikin yin famfo ruwan ƙasa fiye da kima ko siyan ruwa mai tsada don rama.
Ƙirar da ta dace da hanyoyin injiniya don haka ya zama dole don rage waɗannan asarar da tabbatar da amfani da ruwa mai dorewa.
Haushi: Tushen Asarar Ruwa
Haushi yana faruwa ne a lokacin da ruwa ya rikide zuwa tururi saboda zafi da fallasa iska. A cikin kowane tsarin ajiyar ruwa mai buɗewa, wannan tsari ba makawa ne kuma manyan abubuwa huɗu suna tasiri:
- Babban Zazzabi: Zafin yanayi yana haɓaka canjin lokaci daga ruwa zuwa gas.
- Iska mai ƙarfi: Iska tana cire madaidaicin layin iska kai tsaye sama da ruwa, yana barin ƙarin ƙawancen ya faru.
- Hasken Rana Kai tsaye: Hasken rana yana dumama ruwa.
- Wurin Sama: Mafi girma kuma mafi girman kandami, saurin asarar hasara.
A cikin yanayi mai zafi kamar Gabas ta Tsakiya, Ostiraliya, ko Yammacin Amurka, asarar ƙashin ruwa na iya zama babba. Hectare daya na ruwa na iya rasa adadin girma a cikin wata bazara.
Gaskiyar Injiniya:
Duk da yake akwai murfi masu iyo, galibi suna kashe kashe kuɗi (CAPEX) don hana manyan tafki (kadada 10+). Don yawancin ayyuka, ana ɗaukar ƙashin ƙuri'a azaman hasara ta halitta. Injiniyoyin yawanci suna tsara tafki don yin zurfi tare da ƙaramin yanki don rage wannan, amma kawar da ƙawancen gabaɗaya ba shi da wahala ta fuskar tattalin arziki.
Don haka, yawancin dabarun sarrafa tafki sun fi mayar da hankali kan sarrafawa asarar hasara, wanda za'a iya kawar da shi gaba daya tare da fasaha mai dacewa.
Seepage: Babban Babban Sanadin Asarar Ruwa
Yayin da ba za ku iya hana rana ta haskakawa cikin sauƙi ba, ku iya dakatar da kasa daga zubar da tafki.
Duba shafi refers to the movement of water from the reservoir into the surrounding soil or ground. This typically occurs when the reservoir base or side slopes are composed of permeable materials such as sand, gravel, or fractured soil. Even compacted clay, often used as a natural liner, has a permeability rate ($1 \times 10^{-7}$ cm/sec) that allows slow leakage over time.
Idan ba tare da tsarin rufin da ya dace ba, ruwan da aka adana zai bi hanyar mafi ƙarancin juriya zuwa cikin ƙasa.
Dalilan gama gari na ganiwar ido sun haɗa da:
- Yanayi na Ƙasa mai yuwuwa: Ƙasa mai yashi ko ƙasa mai laushi yana zubar da ruwa da sauri.
- Juyin Halitta: Ƙananan motsi na ƙasa na iya fashe layin laka na halitta.
- Rashin Gine-gine: Rashin daidaituwa yana haifar da wurare masu rauni inda ruwa ke shiga.
Haɗarin Bayan Ƙarfin Ƙarfafawa:
Seepage yana yin fiye da zubar da ruwa kawai.
- Rashin Kwanciyar Tsari: Water flowing through an earthen embankment causes "piping" (cikin zaizayar kasa), wanda zai iya haifar da rugujewar katangar dam.
- Gurbatar Muhalli: A cikin aikin hakar ma'adinai ko sharar gida, zubar da ruwa yana ba da damar ruwa masu guba su shiga cikin magudanar ruwa, wanda ke haifar da tarar tsari mai tsanani.
Don waɗannan dalilai, ingantaccen kulawar lemun tsami shine fifiko na ɗaya a ƙirar tsarin adana ruwa na zamani.
Amfani da Geomembrane Liners don Hana Seepage
Idan matsala ta tashi, Geomembrane Liners sune mafita.
Geomembranes su ne membranes na roba da ba za a iya cire su ba da ake amfani da su don layin tafkunan ruwa, tafkuna, magudanar ruwa, da sauran tsarin da ke tattare da ruwa. Ba kamar yumbu ko kankare ba, wanda zai iya fashe ko ba da izinin sha, babban geomembrane mai inganci yana haifar da cikakkar shamaki da ke hana ruwa tuntuɓar ƙasa gaba ɗaya.
Daga cikin nau'ikan kayan da ake da su, Babban Maɗaukaki Polyethylene (HDPE) Geomembrane shine ma'aunin masana'antu don kashi 90% na ayyukan ajiyar ruwa.
Mahimman fa'idodi na layin HDPE Geomembrane sun haɗa da:
- Kyakkyawan rashin cikawa: HDPE has extremely low permeability. It effectively effectively "zeroes out" asarar ganima, tabbatar da cewa kawai ruwan da ke barin tafki shine ta hanyar famfo ko ƙafewa.
- Babban Juriya na Chemical: Ko kuna adana sabon ruwan ban ruwa, brine, ko ruwan sha da aka yi da sinadarai, HDPE ba shi da sinadarai. Ba ya mayar da martani, ruɓe, ko ƙasƙanta a cikin matsanancin yanayin ruwa.
- Ƙarfin Ƙarfi: HDPE abu ne mai tauri. Yana tsayayya da babban nauyin ginshiƙan ruwa mai zurfi kuma yana tsayayya da hawaye daga kayan shigarwa fiye da kayan da aka fi so.
- Juriya UV: HDPE mai inganci yana ƙunshe da baƙar fata na carbon, yana barin shi ya kasance a fallasa ga rana tsawon shekaru da yawa ba tare da ya lalace ba.
Aikace-aikace gama gari:
- Tafkunan Ban ruwa na Noma: Tabbatar da samun ruwa mai mahimmanci ga amfanin gona a lokacin rani.
- Mining Heap Leach & Tafkunan Tailing: Hana asarar maganin ciki (zinariya / jan karfe) da kuma kare muhalli.
- Lagon Ruwan Ruwa: Ya ƙunshi sharar gida amintacce.
Ta hanyar shigar da tsarin suturar geomembrane yadda ya kamata, masu aikin za su iya dakatar da asarar ruwa daga ƙarƙashin ƙasa nan da nan.
Mafi kyawun Ayyuka don Shigar da Layin Tafki
Siyan layin layi mai inganci shine rabin yaƙin. Don cimma kyakkyawan aiki, dole ne a aiwatar da shigarwa tare da daidaitaccen aikin injiniya. Mai layi mai ramuka a cikin kabu bai fi komai ba.
Dangane da kwarewar aikin mu, ga mahimman ayyuka don samun nasarar shigarwa:
-
Shirye-shiryen Karamin Mahimmanci:
Tushen tafki da gangaren dole ne su zama santsi, mai haɗawa zuwa 95% Proctor, kuma-mafi mahimmanci-ba tare da kaifi duwatsu ba. Sau da yawa muna ba da shawarar shigar da a Geotextile kariya Layer Ƙarƙashin layin don kwantar da shi a kan huda daga ƙasa. -
Kwararren Geomembrane Welding:
Ana haɗa bangarori na HDPE ta amfani da walƙiya na thermal fusion (welding wedge). Wannan yana haifar da dinkin waƙa guda biyu tare da tashar iska a tsakiya, yana bawa masu sakawa damar gwada kabu a wurin don tabbatar da cewa ba ya da ruwa. -
Amintattun Tsarukan Anchoring:
Dole ne a kulle layin a cikin madaidaicin anka da aka haƙa kewaye da kewayen tafki. Wannan yana hana layin layi daga zamewa ƙasa lokacin da matakin ruwa ya canza ko lokacin iska mai ƙarfi. -
Dubawa na yau da kullun:
Da zarar an yi aiki, dubawa na lokaci-lokaci na layin da aka fallasa (a saman layin ruwa) yana taimakawa gano yuwuwar lalacewar inji daga dabbobi ko kayan aiki, tabbatar da amincin tsarin na dogon lokaci.
Ƙarshe
Bude tsarin ajiyar ruwa sune muhimman ababen more rayuwa ga noma da masana'antu, amma suna da saurin hasarar ingantaccen aiki idan ba'a sarrafa su daidai ba.
Yayin da evaporation abokin gaba ne na halitta wanda ke da wahalar kawar da shi gaba daya a cikin manyan ayyuka, gani is a specific failure of containment that can be fixed. It is the "low hanging fruit" na kiyaye ruwa.
Geomembrane, musamman HDPE Geomemlane, samar da mafi inganci kuma mafi inganci hanya don kawar da tsintsaye. Ta hanyar cire ruwan ku daga ƙasa mai yuwuwa, kuna kare jarin ku, daidaita kayan aikin ku, da tabbatar da cewa tsarin ajiyar ruwa na zahiri yana adana ruwa.
