Thesis Abstract
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ABSTRACT
CONCEPCION, PAULO L., Bachelor of Science in Chemistry, Department of Chemistry, College of Arts and Sciences, Central Luzon State University, Science City of Muñoz, Nueva Ecija, Philippines, November 2004, CHEMICAL AND BIOLOGICAL DEGRADATION OF NAMI STARCH-POLYVINYL ALCOHOL PLASTIC FILMS AND ECOTOXICITY OF THE BIODEGRADATION PRODUCTS
Adviser: Critic:
Prof. Danila S. Paragas Prof. Joel R. Salazar
This study was conducted to evaluate the chemical and biological degradation and assess the ecotoxic effect of the biodegradation products of polyvinyl alcohol plastic prepared with two grams starch and without starch. The combined-chemical biological degradation was assessed in varied concentration of FeSO4 mixed with 2.8 M H2O2. T2: 0.1 M FeSO4, T3 0.2 M FeSO4, T4: 0.3 M FeSO4. Weight loss of plastic was noted in 5-day interval collection. An ecotoxicity test was carried out in a collected soil after each composting process. The soil organic matter, pH and dry matter were monitored before soil burial test and after each composting process. Result showed that combined chemical and biological degradation is greatest in the treatment with 0.1 M FeSO4 + 2.8 M H2O2 (T2), hence, the addition of the test material has no significant effect on soil quality and there is no toxicity detected based on plant growth and germinability.
CONCEPCION, PAULO L., Bachelor of Science in Chemistry, Department of Chemistry, College of Arts and Sciences, Central Luzon State University, Science City of Muñoz, Nueva Ecija, Philippines, November 2004, CHEMICAL AND BIOLOGICAL DEGRADATION OF NAMI STARCH-POLYVINYL ALCOHOL PLASTIC FILMS AND ECOTOXICITY OF THE BIODEGRADATION PRODUCTS
Adviser: Critic:
Prof. Danila S. Paragas Prof. Joel R. Salazar
This study was conducted to evaluate the chemical and biological degradation and assess the ecotoxic effect of the biodegradation products of polyvinyl alcohol plastic prepared with two grams starch and without starch. The combined-chemical biological degradation was assessed in varied concentration of FeSO4 mixed with 2.8 M H2O2. T2: 0.1 M FeSO4, T3 0.2 M FeSO4, T4: 0.3 M FeSO4. Weight loss of plastic was noted in 5-day interval collection. An ecotoxicity test was carried out in a collected soil after each composting process. The soil organic matter, pH and dry matter were monitored before soil burial test and after each composting process. Result showed that combined chemical and biological degradation is greatest in the treatment with 0.1 M FeSO4 + 2.8 M H2O2 (T2), hence, the addition of the test material has no significant effect on soil quality and there is no toxicity detected based on plant growth and germinability.
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