Duniya da tudunmu sun cika da filastik, sabili da haka sake yin amfani da filastik yana da muhimmanci fiye da kowane lokaci. Anan akwai wasu mahimman bayanai game da filastik sake yin amfani, kuma yadda za a rage tasirin da kwayoyin keyi akan yanayin.
Me yasa Dalilan Kwayoyi?
Bisa ga wasu ƙididdigar, ƙwayoyi suna da kimanin kashi 10 cikin 100 na ragowar shararra a Amurka. An yi amfani da yawancin robobi ta amfani da iskar gas ko wasu nau'o'in samfurin man fetur.
Lokacin da ake amfani da filastik, ana buƙatar samfurori na man fetur - kuma an tsara rubutun muhalli na masana'antun man fetur.
Alal misali, ƙwallon kwalaye, an fara bincika yayin da yawancin mutane suke amfani da su don shan ruwan kwalba. A shekara ta 1976, yawancin mutanen Amurka suka sha lita 1.6 na ruwan kwalba a shekara. Amma wannan lamarin ya tashi zuwa 28.3 galan a kowace shekara a shekara ta 2008. A shekara ta 2015, wannan ya tashi zuwa 36.3 gallons da mutum. Kuma kawai kimanin kashi 25 cikin 100 na waxannan filastik filastik za a sake sake su - amma sake amfani da nauyin ton guda ɗaya na filastik ya ajiye kimanin kwallu bakwai na tsabta.
Alamun Aiki na Filaye
Menene alamomin da aka sake amfani da shi a kan kayan aikin filastik suna nufin? Sun saka nau'in filastik da aka sanya abu, kuma yadda za a sake sake shi. Alal misali, alama ta sake amfani tare da lamba 2 shine alamar HDPE, ko polyethylene mai girma. HDPE yana da matukar wuya, filastik filayen da aka sauƙaƙe a cikin samfurori kamar katako.
Akwai jimlar lambobi bakwai da aka sanya wa kwaskwarima da suka gano irin resin filastik da aka yi amfani da ita a cikin kayan. Wadannan lambobin da aka kira su lambar shaidar ƙwaƙwalwa, ana amfani dashi don warware kwandisai yayin aikin sake sakewa.
Kwayoyin Gyara Aiki da Downcycling Plastics
Lokacin da aka sake yin amfani da robobi, ana amfani da su "downcycled," wato, ana amfani da su don yin wani nau'i na filastik.
Gilashin ruwa na lantarki, alal misali, baza a sake sake sa su cikin sababbin kwalabe na filastik ba. Maimakon haka, ana amfani da resins daga kwalabe na filastik don yin takalma don matasan kai da kuma cikawa don jakar Jakadan.
Abubuwan da ake amfani da ita daga ƙwayoyin magunguna sun haɗa da kayan wasan kwaikwayo, sassa na motar, kwaikwayo ko katako, filayen kwalliya, filasta kayan ado, tebur, bankunan shakatawa, kaya na filin ajiye motoci, raƙan jiragen sama, kayan gado na mota da gandun daji. Kuma mafi yawan waɗannan baza'a iya sake yin amfani da su ba, yayinda ake yin sutura a rassan "lalacewa".
Matsaloli tare da Kwayoyin Gyara
Ba kowa ba ne mai dadi game da sake amfani da robobi. Akwai bambancin ra'ayi game da yanayin "kore" na sake yin gyaran filastik, wanda ke buƙatar babban aiki da makamashi (sau da yawa daga ƙarancin burbushin halittu). Wani rahoto daga Cibiyar Ilimin Kimiyya a Berkeley, Calif., Ta ce aikin gyaran filastik ya sake amfani da shi fiye da yin amfani da resine na filastik budurwa, wanda ya sa kasuwa don sake gina sutura.
Wannan rahoto na Ecology Center ya jaddada cewa hanya mafi kyau ta rage girman tasirin da kamannin keyi a cikin yanayin ba ta sake amfani da su ba, amma ta farko da rage amfani da kwayoyin roba. Suna bayar da shawarar yin amfani da gilashi mai maimaitawa ko kwantena takarda da sake amfani da kwantena filastik - kwalban filastik, sun lura, ana iya cika su kuma sun sake amfani da su sau da yawa.