Zinthu zosawonongeka zimatha kugawidwa m'magulu anayi: mapulasitiki owonongeka, mapulasitiki osawonongeka, mapulasitiki owonongeka ndi zithunzi ndi mapulasitiki osawonongeka ndi madzi.Mapulasitiki owonongeka ndi zithunzithunzi zosakanikirana ndi mapulasitiki.Pansi pa kuwala kwa dzuwa, mapulasitiki amawola pang'onopang'ono.Koma kuipa kwake ndikuti nthawi yowonongeka imakhudzidwa ndi kuwala kwa dzuwa ndi nyengo ya nyengo, choncho sichikhoza kulamulidwa.Mapulasitiki osawonongeka amatanthauza mapulasitiki omwe amatha kuwola kukhala mamolekyu otsika ndi tizilombo tomwe timakhalapo m'chilengedwe, monga mabakiteriya, nkhungu, ndi algae pansi pazifukwa zina.Mapulasitiki oterowo ndi abwino kusungirako ndi kunyamula, ndipo amakhala ndi ntchito zambiri.Mapulasitiki opepuka/owonongeka ndi mapulasitiki omwe amaphatikiza mikhalidwe iwiri ya mapulasitiki osawonongeka ndi mapulasitiki osawonongeka.Pakali pano, mapulasitiki owonongeka omwe amapangidwa m'dziko langa ndi biopolyesters monga polylactic acid (PLA), polyhydroxyalkanoate (PHA), carbon dioxide copolymer (PPC) ndi zina zotero.Asidi polylactic (PLA) amapangidwa ndi polymerization wa lactide monomers yotengedwa mashuga zomera, ndipo akhoza kwathunthu degraded mu madzi ndi mpweya woipa pansi mafakitale kompositi.Ma polyhydroxyalkanoates (PHA) ndi aliphatic copolyesters okhala ndi mawonekedwe osiyanasiyana opangidwa ndi kuwira kwa magwero osiyanasiyana a kaboni ndi tizilombo tating'onoting'ono.Iwo sangakhoze ntchito ma CD zipangizo, mafilimu ulimi, etc., komanso chimagwiritsidwa ntchito mankhwala, zodzoladzola, ndi Animal chakudya ndi zina.Mapulasitiki owonongeka ndi madzi ndi mapulasitiki omwe amatha kusungunuka m'madzi chifukwa chowonjezerapo zinthu zowononga madzi.Ndi chitukuko cha sayansi yamakono, mapulasitiki osawonongeka asanduka malo atsopano pa kafukufuku ndi chitukuko.

Ku China, ukadaulo waposachedwa wa biodegradable sunakhwima mokwanira, ndipo padzakhala zowonjezera zina.Ngati zowonjezera izi zikuwonjezeredwa, zinthu zapulasitiki sizingakwaniritse zotsatira za biodegradation.Ngati sichikuwonjezeredwa, zinthu zapulasitikizi zidzawola nthawi iliyonse, makamaka m'malo otentha kwambiri, choncho zimakhala zovuta kwambiri kusunga.
Komanso, kugwiritsa ntchito biodegradable zipangizo kupanga mankhwalankhunguimafunikira masinthidwe enieni.