Mibvunzo Yekukurukurirana Yemuenzaniso: Mienzaniso Yepurasitiki
Mapurasitiki ndeimwe yezvinhu zvinoshandiswa zvakanyanya muhupenyu hwezuva nezuva. Anoshandiswa mumhando dzakasiyana-siyana, kubva pakurongedza chikafu kusvika kuzvinhu zvemotokari. Muchinyorwa chino, tichaongorora matambudziko emuenzaniso tichikurukura mhando dzakasiyana dzemapurasitiki, hunhu hwawo, uye kuti anowanzo shandiswa sei muhupenyu hwezuva nezuva.
Chii chinonzi Plastiki?
Plastiki chinhu chinoumbwa nemacheni marefu epolymer anoumbwa kubva kuma monomers akasiyana-siyana. Ma monomers aya anogona kubva muzvinhu zvakasikwa kana zvekugadzira. Plastiki inowanzo shandiswa nekuda kwehunhu hwayo hwakareruka, hunogara kwenguva refu, uye hunochinjika. Zvisinei, haasi mapurasitiki ese akagadzirwa zvakaenzana; kune mhando dzakasiyana dzine hunhu hwakasiyana uye mashandisirwo akasiyana.
Mhando dzePurasitiki
Tisati taenderera mberi, ngatizivei mamwe marudzi epurasitiki anowanzo kuwanikwa:
1. Polyethylene (PE)
– Kukurukurirana: Polyethylene ndeimwe yemhando dzepurasitiki dzinogadzirwa zvakanyanya pasi rose. Kune mhando mbiri huru dzepolyethylene: High-Density Polyethylene (HDPE) uye Low-Density Polyethylene (LDPE).
- Muenzaniso wematambudziko:
- Ndeapi musiyano mukuru uripo pakati peHDPE neLDPE maererano nechimiro chemakemikari uye mashandisirwo awo?
2. Polypropylene (PP)
– Kukurukurirana: Polypropylene ipurasitiki ine hunhu hunodzivirira kupisa uye inowanzoshandiswa pakugadzira zvinhu zvakasiyana-siyana zvinosanganisira midziyo yechikafu nemidziyo yemotokari.
- Muenzaniso wematambudziko:
- Sei polypropylene ichishandiswa zvakanyanya muindasitiri yezvekudya?
3. Polyvinyl Chloride (PVC)
– Kukurukurirana: PVC ipurasitiki inoshandiswa zvakasiyana-siyana, inowanzoshandiswa pakuvaka mapaipi, mafuremu emahwindo, uye pasi.
- Muenzaniso wematambudziko:
– Taura mashandisirwo ePVC muhupenyu hwezuva nezuva kunze kwemapombi.
4. Polystyrene (PS)
– Kukurukurirana: Polystyrene ipurasitiki inoshandiswa zvakanyanya mukuisa chikafu mumapakeji uye mumidziyo yekudyira inoraswa.
- Muenzaniso wematambudziko:
- Chii chinoita kuti polystyrene ive yakakodzera kushandiswa sezvinhu zvekurongedza chikafu?
5. Polyethylene Terephthalate (PET)
– Kukurukurirana: PET rudzi rwepurasitiki runoshandiswa zvakanyanya mumabhodhoro ezvinwiwa uye mumapakeji ezvekudya.
- Muenzaniso wematambudziko:
- Sei PET ichiwanzo shandiswa pamabhodhoro ezvinwiwa?
Kukurukurirana kweMienzaniso yeMibvunzo
Ngatikurukurei mimwe yemibvunzo iri pamusoro apa zvakadzama:
Mubvunzo 1: Musiyano Mukuru pakati peHDPE neLDPE
Jawaban:
Musiyano mukuru uripo pakati peHDPE neLDPE uri mumaumbirwo azvo emakemikari:
– HDPE: Ine chimiro chemorekuru chakanyatsorongeka uye chisina matavi akawanda. Izvi zvinoita kuti HDPE ive yakasimba, yakaoma, uye inodzivirira kupisa. HDPE inoshandiswa mukugadzira zvinhu zvakaita semabhodhoro emvura, mapaipi, uye matoyi.
– LDPE: Ine chimiro chakasimba. Izvi zvinoita kuti LDPE ive nyore kuchinjika uye irambe ichidzivirirwa nekumanikidzwa kwakaderera. LDPE inowanzoshandiswa mukugadzira mabhegi epurasitiki, mapurasitiki ekuputira, uye midziyo yekudya.
Mubvunzo 2: Polypropylene muindasitiri yezvekudya
Jawaban:
Polypropylene (PP) inowanzoshandiswa muindasitiri yechikafu nekuda kwezvikonzero zvikuru zvakati wandei:
– Kuramba Kupisa: PP inogona kutsungirira kupisa kwakanyanya panguva yekuvhiyiwa.
– Haipindi neChikafu: PP haipindi nemakemikari akawanda uye haikanganisi kunaka kwechikafu.
- Huremu: Izvi zvinoita kuti zvive nyore kutakura nekugadzirisa.
Mubvunzo 3: Kushandisa Mapaipi Ekunze ePVC
Jawaban:
Kunze kwekushandiswa semapaipi, PVC inoshandiswawo mune zvinotevera:
– Mafuremu emahwindo nemasuo: Nekuda kwekusapinda zvakanaka mumamiriro ekunze uye kudzivirira kupisa.
– Pasi pevinyl: Nekuti zviri nyore kuchenesa uye zvinogara kwenguva refu.
– Matoyi evana: Nekuda kwekuchinjika kwawo uye kugara kwenguva refu.
Mubvunzo 4: Kukodzera kwePolystyrene seChinhu Chekurongedza Chikafu
Jawaban:
Polystyrene yakakodzera kushandiswa sechikafu chekurongedza nekuda kwezvinotevera:
- Nyore: Zvinoita kuti kutumira nekuchengetedza zvive nyore.
– Kugadzikana kwekupisa: Kukwanisa kutsungirira tembiricha yechikafu, inotonhora nekupisa.
– Kusashanda zvakanaka kwemakemikari: Hazvisangani nechikafu chakaputirwa saka hazvina njodzi kushandisa.
Mubvunzo 5: Kushandiswa kwePET paMabhodhoro eChinwiwa
Jawaban:
PET inowanzoshandiswa kumabhodhoro ezvinwiwa nekuti:
– Simba: PET ipurasitiki yakasimba uye yakareruka.
– Hazvina Chepfu: Zvakachengeteka kushandisa pakurongedza chikafu nezvinwiwa.
– Kujeka: Mabhodhoro ePET anoonekera pachena kuitira kuti vatengi vagone kuona zviri mukati mechigadzirwa zvakajeka.
Kukanganiswa kwePurasitiki paMamiriro Ekunze
Kunyange zvazvo purasitiki ichipa mabhenefiti akawanda muhupenyu hwezuva nezuva, kushandiswa kwayo kunewo kukanganisa kwakaipa nharaunda. Mapurasitiki asina kutarisirwa zvakanaka anogona kukonzera kusvibiswa kwevhu, mvura, uye gungwa. Mapurasitiki madiki akawanikwawo munzvimbo dzakasiyana-siyana dzezvakatipoteredza, zvichiratidza matambudziko ekugadzirisa marara epurasitiki.
Kuedza Kuderedza Mapurasitiki Uye Kutarisira
Kuti kuderedza migumisiro yakaipa yepurasitiki, matanho akati wandei anogona kutorwa:
– Kudzokorodza: Kuvandudza maitiro ekushandisazve mapurasitiki kuti uve nechokwadi chekuti mapurasitiki anogona kushandiswazve.
– Zvimwe Zvinhu: Kugadzira zvimwe zvinhu zvisingakuvadzi nharaunda.
– Kuderedza Kushandiswa Kwepurasitiki Inoshandiswa Kamwe Chete: Deredza kushandiswa kwepurasitiki inoshandiswa kamwe chete nekushandisa zvinhu zvinogona kushandiswazve.
Mhedziso
Plastiki chinhu chinobatsira zvikuru mukushandiswa kwakasiyana-siyana nekuda kwehunhu hwayo hwakareruka, hunochinjika, uye hunogara kwenguva refu. Zvisinei, kune mhando dzakasiyana dzepurasitiki dzine hunhu hwakasiyana uye mashandisirwo akasiyana. Nekunzwisisa misiyano iyi uye kutora matanho ekuderedza kukanganisa kwedu zvakatipoteredza, tinogona kushandisa purasitiki nekuchenjera.
Chinyorwa chino chakurukura mienzaniso yakati wandei yemibvunzo nehurukuro maererano nemarudzi akasiyana-siyana epurasitiki. Zvinotarisirwa kuti izvi zvichabatsira kuwedzera ruzivo neruzivo rwekukosha kwekunzwisisa hunhu hwemarudzi akasiyana-siyana epurasitiki uye kuti angashandiswa sei zvakanaka uye zvine hungwaru.
