Characteristics of Municipal Sewage Sludge Affecting the Biodegradation of a Plastic Material Under Aerobic Condition

호기적 조건에서 플라스틱 생분해에 영향을 미치는 도시 하수 오니의 성질

  • 서인선 (동국대학교 화학공학과) ;
  • 이명천 (동국대학교 화학공학과) ;
  • 김병홍 (한국과학기술연구원 환경연구센타) ;
  • 신평균 (동국대학교 화학공학과)
  • Published : 1994.08.01

Abstract

The characteristics of activated sludge affecting the biodegradation of plastic materials under aerobic condition were studied using cellophane film as a model system. The activated sludges of site 3, which treat a mixture of domestic sewage and supernatant of septic tank, obtained from December 1993 to April 1994 showed similar biodegradation activities. Biodegradations for 28 days reached around 80%. Viable cell number of inoculums maintained at a level of 10$^{6}$~10$^{7}$ /ml. In this range, viable cell number showed no relationship with biodegradation activities. The activa- ted sludges of site 2, which treat a mixture of domestic sewage and anaerobic digest of nightsoil, obtained four times from April 1993 to April 1994 showed very different biodegradation activities ranged from 20% to 80% for 28 days. Inoculum size affects biodegradation significantly. One percent inoculum showed the best biodegradation among the inoculum sizes of 0.1, 1.0 and 10%. Ten percent inoculum revealed inhibitory effects on the biodegradation activity which can be greatly reduced by centrifugation and filtration. Filtration was better than centrifugation in reducing inhibitory effects.

Keywords

References

  1. Shield Plastics, a load of rubbish The International Magazin of the BP Group;V.Shepard(ed.)
  2. Characterization of municipal solid waste in the United States, 1990 update, EPA-530-SW90-042 United States Environmental Protection Agency(US EPA)
  3. Plastic Wastes, Management, Control, Recycling, and Disposal U.S. EPA Options to reduce the impacts of post-consumer plastic wastes Curlee,T.R.;T.R.Curlee(ed.);S.Das(ed.)
  4. J. Appl. Poly. Sci. v.26 Deterioration of plastic films under soil burial conditions Colin,G.;J.D.Cooney;D.J.Carlsson;D.M.Wiles
  5. J. Appl. Poly. Sci. v.42 Degradation of polyethylene-starch blends in soil Goheen,S.M.;R.P.Wool
  6. Chemosphere v.25 Factors affecting the biodegradability of biodegradable polyester in soil Yakabe,Y.;K.Nohara;T.Hara;Y.Fujino
  7. 92/3 高分子學會硏究會合同會議 발표논문 초록 A study on Methods of testing biodegradable plastics in soil 惠谷 浩
  8. Annual Book of ASTM Standards v.8.03 ASTM D5309-92, Standard test method for determining the aerobic biodegradation of plastic materials in the presence of municipal sewage sludge American Society for Testing and Materials
  9. Annual Book of ASTM Standards v.8.03 ASTM D5271-92, Standard test method for assessing the aerobic biodegradation of plastic meterials in a activated-sludge-wastwater-treatment system American Society for Testing and Materials
  10. J. Appl. Poly. Sci. v.18 Microbial degradation of polyesters: polycaprolactone degraded by P. pullulans Fields,R.D.;P.Rodriguez;R.K.Finn
  11. Appl. Environ. Microbiol. v.57 Biodegradation of degradable plastic polyethylene by Phanerochaete and Streptomyces species Lee,B.T.;A.L.Pometto Ⅲ;A.Fratzke
  12. 92/3 高分子學會硏究會合同會議 발표논문 초록 특정 미생물을 이용하는 생분해성의 예측 Tsuji,M.
  13. Appl. Environ. Microbiol. v.59 Isotactic polypropylene biodegradation by a microbial community: physicochemical characterization of metabolites produced Cacciari,I.;P.Quatrini;G.Zirletta;E.Mincione;V.Vinciguerra;P.Lupattelli
  14. J. Appl. Poly. Sci. v.26 Hydrolysis of copolyesters containing aromatic and aliphatic ester blocks by lipase Tokiwa,Y.;T.Suzuki
  15. Agric. Biol. Chem. v.50 Hydrolysis of polyesters by Rhizopus arrhizus lipase Tokiwa,Y.;T.Suzuki;K.Takeda
  16. Degradable Materials: Perspectives, Issues, and Opportunities, The first international scientific consensus workshop proceedings Evaluating biodegradable plastics with in vitro enzyme assay: additives which accelerate the rate of biodegradation Allenza,P.;J.Scholimeyer;R.P.Rohrbach;Barenberg,S.A.(ed.);J.L.Brash(ed.);R.Narayan(ed.);A.E.Redpath(ed.)
  17. 석사논문, 한국과학기술원 효소, 곰팡이 및 토양에 의한 poly(e-caprolactone)과 poly(ethylene teraphthalate)의 분해성 평가 김연철
  18. Annual Book of ASTM Standards v.8.03 ASTM D5338-92, Standard test method for determining the aerobic biodegradation of plastic materials under controlled composting conditions American Society for Testing and Materials
  19. J. Indust. Microbiol. v.10 The fate of biodegradable plastics in municipal leaf compost Gilmore,D.F.;S.Antoun;R.W.Lenz;S.Goodwin;R.Austin;R.C.Fuller
  20. ANTEC'92 The accelerated biodegradability of plastic meterials in simulated compost and landfill environments McCarthy,S.P.;M.Gada;G.P.Smith;V.Tolland;B.Press;D.Eberiel;C.Bruell;R.A.Gross
  21. Appl. Environ. Microbiol. v.59 Degradation of degradable starch-polyethylene plastics in a compost environment Johnson,K.E.;A.L.Pometto Ⅲ;Z.Nikolov
  22. Annual Book of ASTM Standards v.8.03 ASTM D5210-91, Standard test method for determining the anaerobic biodegradation of plastic materials in the presence of municipal sewage sludge American Society for Testing and Materials
  23. J. Environ. Polym. Degrad. v.1 Degradation of starch-plastic composites in a municipal solid waste landfill Breslin,V.T.
  24. Development of standard for degradable plastics by ASTM subcommitte D-20.96 on environmentally degrable plastics.(personal communication) Narayan,R.