Environmental influence analysis of marine waste-oyster shell-plastic bag for waste treatment

Abstract

The focus of our study was on identifying suitable plastic bags for the waste disposal problem conditions affecting the environment. Based on the domestic wastes of plastic bags, which need to be non-toxic substances, not producing dioxins and be biodegradable and hydrolysable, we verified marine waste (oyster shell) plastic bags. We compared the heat effect and heat of combustion to determine the thermal stability and decomposition characteristics of PBs under 50, 100, and 150 days with various hydrolysis conditions. We also found the phthalates were all not detected, and the heavy metal content of the PBs also was below the food packaging plastic material, heavy metal content standards of the Ministry of Health and Welfare of Taiwan; the emission values almost are limited in the international toxicity equivalency factor specification, and the accumulation degree of biodegradation of the plastic bag samples’ average value of biodegradation rate reached 90.35%.