Environmental impact study on conversion of multilayer metallized packaging to paving blocks with a Life Cycle Assessment (LCA) approach

Abstract Plastic waste management in Indonesia is relatively poorly implemented due to the limited number of recyclers. One most abundant plastic wastes multilayer metallized packaging (MLP). This study was conducted analyze environmental impacts MLP and bag conversion paving blocks (PVB) with a life cycle assessment approach aimed determine whether such process brings positive or negative surrounding environment. The performed gate-to-gate on input data, including raw materials, energy, support output, using openLCA 1.11 software, ecoinvent 3.8 databases, CML-IA baseline method. Secondary data treatment sanitary landfill inferred from database for comparative analysis. Environmental arising production 1 PVB (20 × 10 6 cm, 700 g) are acidification 0.00913 kg SO 2 eq, eutrophication 0.00243 PO4 freshwater aquatic ecotoxicity 0.8391 1,4-DB global warming (GWP100a) 2.68006 CO human toxicity 1.2672 terrestrial 0.00247 eq. Compared landfill, lowered environment, whilst other higher energy processes. Conversion proposed as an alternative management.