Polyvinyl Alcohol Biodegradable Solutions for Sustainable Industries

Polyvinyl alcohol (PVA) is biodegradable under specific environmental conditions. In aerobic environments with active microbial communities, such as activated sludge systems, PVA can degrade at rates of 60–80% within 28 days, depending on its degree of hydrolysis and molecular weight. Partially hydrolyzed PVA (DH 87–89%) biodegrades faster than fully hydrolyzed grades (DH ≥98%) due to reduced crystallinity. PVA’s biodegradability is certified by standards like OECD 301B, and it breaks down into harmless CO₂ and water. However, in anaerobic conditions (e.g., landfills), PVA degradation is slower. Its non-toxicity and biodegradability make PVA ideal for water-soluble packaging, agricultural mulch, and medical applications where environmental impact is a concern.