Anaerobic treatment of slaughterhouse waste using a flocculant sludge UASB reactor

Sayed, S.; Zeeuw, W. De; Lettinga, G.

doi:10.1016/0141-4607(84)90045-3

Cited by 75 publications

(53 citation statements)

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“…The COD loads ranged from 3 to 62 g/L/day, and COD removals (filtered) were consistently greater than 90%. Numerous other studies by these and other authors report on the UASB as applied to various wastes under varied conditions [13,37,69,78,83,132,133,139,157,160,166].…”

Section: The Upflow Anaerobic Sludge Blanket Reactormentioning

confidence: 99%

Enhancement of granulation and start‐up in the anaerobic sequencing batch reactor

Wirtz¹,

Dague²

1996

Water Environment Research

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This manuscript has been reproduced from the microfilm master. UMI fihns the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be fi-om any type of computer printer.The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction.In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion.Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand corner and continuing from left to right in equal sections with small overlaps. Each original is also photographed in one exposure and is included in reduced form at the back of the book.Photographs included in the original manuscript have been reproduced xerographically in this copy. Higher quality 6" x 9" black and white photographic prints are available for any photographs or illustrations appearing in this copy for an additional charge. Contact UMI directly to order. Table 2. Proton-reducing reactions by the acetogenic bacteria [14,27,143,168]. 23 Table 3. The methanogenic bacteria [12], 26 Table 4. Methanogenic substrates [12]. 27 Table 5. Important reactions by the methanogens [12,168]. 27 Table 6. Effects of alkali and alkaline-earth metals on anaerobic digestion [95]. 52 Table 7. Bacterial counts in granules from UASB reactors [31,33]. 91 Table 8. General composition of granules [31]. 96 Table 9. Granule chemical composition [32,33], 96 Table 10. Specific methanogenic activity of various biomass [32,87]. 99 Table 11. Substrates suitable for granule formation. 105 Table 12. Solubility products of metal salts [98]. 111 Table 13. Sucrose feed mixture. 126 Table 14. Beef extract and glucose feed mixture. 127 Table 15. Composition of the beef extract soup base. 128 Table 16. Nutrient (NPK) solution. 128 Table 17. Trace metal solution. 129 Table 18. Ames municipal water analysis. 131 Table 19. ASBR cycle time for 48 and 24-hr HRTs. 133 viii Table 20. Attachment matrices utilized for granulation enhancement. 138 Table 21. Polymer characteristics. 139 Table 22. Coagulants utilized for granulation enhancement. 139 Table 23. Operational parameters routinely tested. 141 Table 24. Reagents used in the COD test. 144 Table 25. Gas chromatography analysis setup. 158 Table 26. Elemental analysis of granules. 165 Table 27. Start-up and granulation summary. 232 Table 28. Summary of specific methanogenic activity experiments. 238 Table 29. Chemical composition of granular and initial seed biomass. 255 Table 30. COD data for the sucrose control test. 286 Table 31. Biogas data for the sucrose control test. 287 Table 32. Volatile acids data for the sucrose control test. 291 Ta...

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Section: The Upflow Anaerobic Sludge Blanket Reactormentioning

confidence: 99%

Enhancement of granulation and start‐up in the anaerobic sequencing batch reactor

Wirtz¹,

Dague²

1996

Water Environment Research

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“…Na Tabela 4.6 são apresentados, para o primeiro e segundo reatores nos ensaio 1, 2 e 3, os resultados médios de produção diária de metano, juntamente com a TCOV, as DQO médias diárias afluentes, efluentes e removidas, os valores calculados das porcentagens de DQO total afluente e removida convertidas em metano e a relação entre a produção de DQO-CH 4 e DQO dissolvida removida, denominada fator M por Sayed (1987).…”

Section: Produção De Metanounclassified

Desempenho e caracterização microbiana do processo de dois estágios com reatores anaeróbios de fluxo ascendente com manta de lodo (UASB) tratando águas residuárias de suinocultura

Pereira¹

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S Sã ão o CCa ar rl lo os s, , S SP P 2 20 00 04 4 "Sem o Homem, isto é, antes da história, a natureza era una. Continua a sê-lo, em si mesma, apesar das partições que o uso do planeta pelos Homens lhe infligiu. Agora, porém, há uma enorme mudança. Una, mas socialmente fragmentada, durante tantos séculos, a natureza é agora unificada pela História, em benefício de firmas, estados e classes hegemônicas. Mas não é mais a Natureza Amiga, e o Homem também não é mais seu amigo". Santos (1997) À minha esposa Selma, a quem sempre desejei ter ao meu lado, à minha mãe Maria e ao meu pai José, Pelo significado que me dão à vida, DEDICO este trabalho e todo meu carinho e amor. A AG GR RA AD DE EC CI IM ME EN NT TO OS SMeus agradecimentos a todas as pessoas e instituições que contribuíram para a elaboração desta pesquisa. Aos familiares, amigos, colegas de curso e trabalho que me deram muito incentivo e apoio e de maneira especial, Aos Profs. Drs. Roberto Alves de Oliveira e Maria Bernadete Varesche pela orientação segura, companheirismo, ensinamentos e estímulo.Aos Profs. Drs. Marcelo Zaiat e Eugênio Foresti pelo apoio, estímulo, companheirismo e pelas sugestões valiosas para o desenvolvimento deste trabalho. Às técnicas do Laboratório de Processos Biológicos Maria Ângela e ElizabeteMoraes pela convivência agradável e pelo apoio na realização das análises. Às colegas Júlia Shumiko e Izabel Sakamoto pelo auxílio na realização dasanálises microbiológicas e amizade dentro e fora do ambiente de trabalho. Aos amigos Ronan Contrera, Luis Hamilton e Katt Regina pelo apoio, incentivo, amizade e contribuição na redação desta pesquisa. Também pela estadia nas minhas viagens a São Carlos e aos bons pratos e comemorações acontecidos neste período.Aos amigos Rogers e Samantha pelo apoio e contribuição na elaboração deste trabalho.Aos amigos da Secretaria do Abastecimento de Curitiba (Braz e Georg) pelo incentivo e apoio direto ou indireto no desenvolvimento deste trabalho.Ao meu irmão Valmir, meu eterno amigo, a quem sou muito grato pelo desenvolvimento de minhas atividades profissionais no período em que estive ausente.

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“…The wastewater generated in meat processing plants contain high amounts of biodegradable organic matter, usually varying from 1100 to 2400 mg/dm 3 in terms of BOD, with the soluble fraction varying from 40 to 60% [10,13]. The physical nature of these wastewaters has been studies by Sayed et al [14], who have shown that if the COD of screened (1 mm mesh) effluent, 40÷50% was present as coarse, suspended matter, which was insoluble and slowly biodegradable, and the remainder is present as colloidal and soluble matter. This varies considerably from domestic wastewater, in which the COD is present mainly in the colloidal form [14].…”

Section: Introductionmentioning

confidence: 99%

“…The physical nature of these wastewaters has been studies by Sayed et al [14], who have shown that if the COD of screened (1 mm mesh) effluent, 40÷50% was present as coarse, suspended matter, which was insoluble and slowly biodegradable, and the remainder is present as colloidal and soluble matter. This varies considerably from domestic wastewater, in which the COD is present mainly in the colloidal form [14]. The main contributors of organic load to these effluents are fecal, fat, blood, suspended material, urine, loose meat and soluble proteins.…”

Section: Introductionmentioning

confidence: 99%

“…The wastewater contain pathogenic and non-pathogenic viruses, bacteria and parasite eggs. Prior to discharge from the plant, poultry processors are required to remove the majority of the soluble and particulate organic material in their wastewater in order to achieve compliance with environmental regulation [14,[16][17][18][19]. The treatment of meat industrial wastewater is a highly complex process that generally involves factors associated with load fluctuations and high concentrations of organic matter.…”

Section: Introductionmentioning

confidence: 99%

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Toxicity Assessment of Treated Meat Industry Wastewater in the Anaerobic Process

Kwarciak‐Kozłowska

2017

Eng. Prot. Environ.

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Ocena toksyczności ścieków z przemysłu mięsnego oczyszczonych w procesie beztlenowymMajor pollutant components of meat processing wastewater are biodegradable organic compounds, fats and proteins in both particulate and dissolved forms. Because of the possible pollution of water sources, the efficient disposal of effluent from meat plants is important. The treatment of industrial wastewater is a highly complex process that generally involves factors associated with load fluctuations and high concentrations of organic matter. Toxic effects on aquatic organisms and plants may be caused by numerous nitrogen compounds, as well as detergents and antibiotics, in the meat industry wastewater. The aim of the research was to determine the toxicity of anaerobic treated meat industry wastewaters. The level of toxicity was determined with algae growth inhibition test and Lepidium test. The values of ErC50 (0÷96) and EbC50 of indicators were 18.4 and 8.6% respectively. TU value for ErC50 was 5.51 which meant acute toxicity of wastewater. The value of TU for EbC50 was 11.62 (high toxicity of wastewater). The values of indicators RSG (relative seed germination), RRG (relative root growth) and GI (germination index) were 92, 19.5 and 17.62% respectively. Treatment efficiency meat industry wastewater during fermentation process was very high. The COD and BOD removal efficiency were on 82.3 and 80% respectively. Effluent from ASBR reactor had following parameters: COD -206 mg O2/dm 3 and BOD -130 mg/dm 3 . TOC value after anaerobic process was 75 mg C/dm 3 (78.1%). The concentration of ether extract and proteins were 188 and 74 mg/dm 3 respectively. Generated biogas in the methane fermentation process of wastewater from meat industry plants was characterized by a high methane content (77.5% vol.). Carbon dioxide and the ballast in the analyzed biogas were 20 and 2.5% respectively. In order to enrich biomass with methane by removal of CO2 from its content, the gas generated in the anaerobic process was subjected to the processes of chemisorption and adsorption on the granulated active carbons and molecular sieve. Purification the raw biogas by a molecular sieve has contributed to the increase of methane in enriched from 77.5 to 92.6% and the removal of CO2 from 20 to 5.7%. Due to poor quality and its high toxicity, effluent from ASBR reactor can not to be discharged into natural water. In the future it is suggested to incorporate RO or UF into the technological system in order to posttreatment the wastewater.

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Anaerobic treatment of slaughterhouse waste using a flocculant sludge UASB reactor

Cited by 75 publications

References 2 publications

Enhancement of granulation and start‐up in the anaerobic sequencing batch reactor

Enhancement of granulation and start‐up in the anaerobic sequencing batch reactor

Desempenho e caracterização microbiana do processo de dois estágios com reatores anaeróbios de fluxo ascendente com manta de lodo (UASB) tratando águas residuárias de suinocultura

Toxicity Assessment of Treated Meat Industry Wastewater in the Anaerobic Process

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