Ibhegi yokupakisha eyonakaliswayo, intsingiselo iyathotywa, kodwa ukupakishwa okunokonakala kwahlulahlulwe "kunokonakala" kunye "nokonakala ngokupheleleyo" kwiindidi ezimbini.
Isikhwama seplastiki esinokonakala senziwe ngeendiza zezityalo kunye nezinye ezinobuhlobo kumzimba womntu kunye nokusingqongileyo, okwahlukileyo kwiiplastiki ezintathu zokwenziwa, emva kokuba inkunkuma, phantsi kwesenzo sendalo yebhayoloji, inokubola ngokwayo, kungakhathaliseki ukuba abantu okanye indalo. azinabungozi, yeyakwipakethe eluhlaza.Ingxowa yeplastiki eyonakaliswayo luhlobo lwengxowa yokuthenga enokuchithwa kwaye inokuthotywa ngokulula.
Iingxowa zeplastiki ezonakeleyo zinokwahlulwa zibe ziindidi ezimbini ukusuka kumahluko wezinto ezikrwada kunye nezinto zokubola:
• Ingxowa yeplastiki yenziwe ikakhulu ngeplastiki yepolyethylene, exutywe nesitatshi kunye nezinye izinto zebhayoloji ezingonakalayo, ezikwaziwa ngokuba yiplastiki enokubola.Olu hlobo lwengxowa yeplastiki lubola ikakhulu ngesenzo se-microorganisms.
• Olunye uhlobo lwenziwe kakhulu ngeplastiki ye-polyethylene, exutywe nomgubo weminerali efana ne-light desorption agent kunye ne-calcium carbonate, ekwabizwa ngokuba yi-light desorption plastic bag.Olu hlobo lwengxowa yeplastiki luphuka phantsi kwesenzo selanga.
Isingxobo esinokonakala ngokupheleleyo sithetha ukuba zonke iingxowa zeplastiki zithotywa zibe ngamanzi kunye nekharbon diokside.Owona mthombo wezinto ezonakaliswa ngokupheleleyo zicutshungulwa ukusuka kumbona, i-cassava kunye nezinye izinto zibe yi-lactic acid, eyaziwa ngokuba yi-PLA.I-Poly Lactic Acid (PLA) luhlobo olutsha lwe-biological substrate kunye ne-biodegradable material ehlaziyiweyo.Isitashi izinto ekrwada i saccharified ukufumana iswekile, kwaye ke iswekile kunye neengxaki ezithile zivundiswe ukuvelisa ubunyulu obuphezulu lactic acid, kwaye ke i-PLA enobunzima obuthile bemolekyuli idityaniswe yindlela yokudityaniswa kwemichiza.Inokonakala kwezinto eziphilayo.Emva kokusetyenziswa, inokutshatyalaliswa ngokupheleleyo ngama-microorganisms kwindalo phantsi kweemeko ezithile, kwaye ekugqibeleni ivelise i-carbon dioxide kunye namanzi.Ayingcolisi imo engqongileyo, nto leyo eluncedo kakhulu ekukhuseleni okusingqongileyo kwaye iyinto ehambelana nokusingqongileyo kubasebenzi.
Ixesha lokuposa: Mar-05-2021