Polyethylene terephthalate (PET) yɛ ade a wɔde di dwuma kɛse wɔ nnuan a wɔde kyekyere nneɛma ho adwumayɛ mu. Nea agye din no fi akwanside ahorow a eye kyɛn so, su a emu yɛ hare, ne sɛnea wotumi san de di dwuma bio no mu. Saa asɛm yi hwehwɛ nea enti a wɔde PET di dwuma kɛse wɔ nnuan a wɔde kyekyere nneɛma mu, a wɔde wɔn adwene si PET nnaka ne aduan-grade PET nnaka so titiriw. Ɛdenam PET su ne mfaso horow a wɔbɛte ase so no, wɔn a wɔde wɔn ho hyɛ nnuan a wɔde kyekyere nneɛma mu adwuma mu no betumi asi gyinae a ɛfata wɔ sɛnea wɔde bedi dwuma no ho.
Nneɛma a ɛwɔ PET mu
PET yɛ plastic a wobu no kɛse esiane sɛ ɛyɛ nea ɛda adi pefee, ɛyɛ den, na ɛyɛ adwuma wɔ mmeae pii nti. PET nneɛma a ɛho hia sen biara no mu biako ne sɛnea etumi siw mframa ne nsu ano, a ɛho hia kɛse na ama aduan ayɛ foforo na ama ne nkwa nna akyɛ. Sɛnea ade no mu yɛ hare no nso boa ma wɔtew akwantu ho ka ne ahoɔden a wɔde di dwuma so, na ɛma ɛyɛ ɔkwan a ɛnyɛ nea atwa yɛn ho ahyia sɛ wɔde toto nneɛma a wɔde kyekyere nneɛma a emu yɛ duru ho a.
Wonim PET nso sɛ ɛyɛ nea wotumi san de di dwuma yiye. Wobetumi asan de PET adi dwuma mpɛn pii a wɔhwere ne su kɛse, na ɛno di ahwehwɛde a ɛrenya nkɔanim a ɛfa ano aduru a wɔde kyekyere nneɛma a ɛbɛkɔ so atra hɔ daa ho no ho dwuma. Ɛnyɛ sɛ sɛnea PET tumi san de di dwuma bio no boa ma wɔtew nwura so nko, na mmom ɛkora nneɛma so denam nneɛma a wɔsan de di dwuma de yɛ nneɛma foforo a wɔde kyekyere nneɛma ho no so.
Mfaso a ɛwɔ PET so wɔ Aduan a Wɔde Gu Nneɛma Mu
Nea edi kan no, ne pefeeyɛ ma adetɔfo tumi hwɛ nneɛma a ɛwɔ pakete no mu ntɛm, ade titiriw wɔ adetɔfo gyinaesi-mu. Saa ade a wotumi hu yi boa ma adetɔfo nya ahotoso efisɛ wobetumi asusuw sɛnea ade no te ne sɛnea ɛyɛ foforo ansa na wɔatɔ.
Nea ɛto so abien no, PET ahoɔden ne sɛnea ɛtra hɔ kyɛ no hwɛ hu sɛ nneɛma a wɔde kyekyere nneɛma no betumi agyina ɔhaw a ɛwɔ nneɛma a wɔde mena ne nea wɔde di dwuma mu ano a ɛremma aduan no mudi mu kura nsɛe. Eyi ho hia titiriw ma aduan-grade PET adaka dwumadie a aduane no ahobanbɔ ne ne su a wɔbɛkura mu no ho hia paa.
Awiei koraa no, sɛnea PET tumi ko tia nnuru a ɛyɛ adwuma no hwɛ hu sɛ ɛne aduan a ɛwɔ mu no rennyɛ adwuma, na ɛkora aduan no dɛ ne aduannuru a ɛwɔ mu no so. Saa adeyɛ a ɛnyɛ adwuma yi ma PET yɛ nea wɔpɛ sɛ wɔkyekyere nnuan ahorow, a anonne, nnuan a wɔde di agoru, ne nneɛma a wɔayɛ no foforo ka ho.
PET a Wɔde Di Dwuma wɔ Aduan a Wɔde Gu Nneɛma Mu
Wobetumi de PET adi dwuma wɔ nneɛma ahorow a wɔde kyekyere nnuan mu, a nkotoku, tray, ne nkuku a wɔde clamshell gu mu ka ho. Sɛnea ɛyɛ adwuma wɔ mmeae pii no ma wotumi nwene no ma ɛyɛ ne nsusuwii ne ne kɛse ahorow de di nnuan ahorow ahiade pɔtee ho dwuma. Sɛ nhwɛso no, wɔtaa de PET nkotoku di dwuma de kyekyere anonne esiane sɛ emu yɛ hare na ɛnsɛe nti.
Wɔ nnɔbae a wɔayɛ no foforo ho no, PET tray ne clamshell nsukorade yɛ nneɛma a nkurɔfo ani gye ho sɛ wɔbɛpaw. Ɛnyɛ sɛ saa nnuru a wɔde kyekyere nneɛma yi bɔ emu nneɛma ho ban fi honam fam ɔsɛe ho nko, na mmom esiw efĩ a ɛwɔ akyi nso ano yiye. Sɛ wɔde PET nnaka di dwuma de kyekyere nnuaba ne nhabannuru a, ɛma ɛkɔ so yɛ foforo na ɛyɛ nea adetɔfo ani gye ho.
Nneɛma a Atwa Yɛn Ho Ahyia Nkɛntɛnso ne Nneɛma a Ɛkɔ So Daa
Nneɛma a wɔde kyekyere nneɛma ho nkɛntɛnso a ɛwɔ nneɛma a atwa yɛn ho ahyia so no yɛ ade titiriw a wɔn a wɔyɛ ne wɔn a wɔde di dwuma nyinaa susuw ho. PET yɛ adeɛ a wɔpaw a ɛbɛtena hɔ daa ɛnam ne tumi a wɔsan de di dwuma ne ahoɔden-a ɛyɛ adwuma yie. PET a wɔsan de di dwuma no ma nneɛma a wɔmfa nyɛ hwee a wɔhwehwɛ no so tew, na ɛnam so ma wɔkora abɔde mu nneɛma so na ɛmma mframa bɔne a ɛbata nneɛma a wɔde kyekyere nneɛma ho no so tew.
Bio nso, nkɔso a aba wɔ mfiridwuma a wɔde di dwuma bio mu no ama wɔatumi ayɛ PET a wɔasan de adi dwuma (rPET), a wobetumi de ayɛ nneɛma foforo a wɔde kyekyere nneɛma. Saa closed-loop nhyehyɛe yi boa sikasɛm a ɛyɛ kurukuruwa a wɔsan de nneɛma di dwuma bere nyinaa, na ɛtew nwura ne nneɛma a atwa yɛn ho ahyia so.
Nsɛnnennen ne Daakye Ho Nsusuwii
Ɛmfa ho mfaso pii a ɛwɔ so no, PET a wɔde bedi dwuma wɔ nnuan a wɔde kyekyere nneɛma mu no nyɛ nea nsɛnnennen nnim. Nsɛm atitiriw no mu biako ne efĩ a ebetumi aba wɔ plastic nketenkete mu, a ɛma nneɛma a atwa yɛn ho ahyia ne akwahosan ho haw sɔre. Nanso, nhwehwɛmu ne nkɔsoɔ mmɔdenbɔ a ɛkɔ so no reyɛ adwuma de adi saa nsɛm yi ho dwuma denam PET a wɔsan de di dwuma ne sɛnea ɛtumi sɛe abɔdeɛ a nkwa wom a wɔbɛma atu mpɔn no so.
Sɛ yɛhwɛ daakye a, anidaso a ɛwɔ hɔ sɛ wɔde PET bedi dwuma wɔ nnuan a wɔde kyekyere nneɛma mu no yɛ nea ɛyɛ anigye. Nneɛma foforo a wɔayɛ wɔ nneɛma ho nyansahu ne mfiridwuma a wɔde di dwuma bio mu no hyɛ bɔ sɛ ɛbɛma PET nneɛma a wɔde kyekyere nneɛma no atumi atra hɔ daa na ayɛ adwuma yiye. Bere a nneɛma a wɔde kyekyere nneɛma ho ano aduru a ɛnyɛ nea ɛmma nneɛma a atwa yɛn ho ahyia ho ahwehwɛde kɔ so yɛ kɛse no, ɛda adi sɛ PET bɛkɔ so ayɛ adwuma titiriw wɔ nnuan a wɔde kyekyere nneɛma ho adwumayɛ mu.
Awie
Sɛ yɛbɛbɔ no mua a, PET su soronko no ma ɛyɛ ade a eye ma nnuan a wɔde kyekyere nneɛma. N’ahoɔden, nea ɛda adi pefee ne nea wotumi san de di dwuma bio no ma wonya mfaso kɛse sen nneɛma afoforo a wɔde kyekyere nneɛma. Bere a nnwuma no kɔ so hwehwɛ sɛ wobedi adetɔfo ahwehwɛde a ɛfa nneɛma a wɔde kyekyere nneɛma ho ano aduru a ahobammɔ wom, ɛtra hɔ daa na ɛyɛ fɛ ho dwuma no, ɛda adi sɛ aduan-grade PET nnaka ne PET nnaka a wɔde di dwuma no bɛkɔ soro. Ɛdenam nneɛma foforo a wɔbɛkɔ so ayɛ na wɔadi nneɛma a atwa yɛn ho ahyia ho nsɛnnennen ho dwuma so no, PET betumi adi dwuma titiriw wɔ nnuan a wɔde kyekyere nneɛma daakye mu.
