Avaliação físico-química de efluente gerado em biodigestor anaeróbio para fins de avaliação de eficiência e aplicação como fertilizante agrícola

Química Nova

Wilson Tadeu Lopes Da Silva²  Antonio Pereira De Novaes²  Vivian Kuroki²  Lilian Fernanda De Almeida Martelli²  Lourenço Magnoni Júnior¹ 

[1] ,Embrapa InstrumentaçãoSão Carlos SP ,Brasil

关键词: anaerobic biodigester;    sewage treatment;    fertilizer;   

DOI  :  10.1590/S0100-40422012000100007

来源: SciELO

【 摘 要 】

The use of biodigester for basic and environmental sanitation has large demand in Brazil. A biodigester was built to treat conjunctly the human and pig feces and urine, regarding to its future application in rural small towns. The results show that the biodigester can reduce 90% of COD and BOD and, up to 99.99% of thermotolerant coliforms. The treated effluent has variable quantities of macro- and micro-nutrients; and organic matter. However, the concentration variability of the nutrients makes difficult a dosed application into soil. The soluble salts (mainly as Na+ form) make necessary a controlled use to avoid environmental degradation.

【 授权许可】

CC BY-NC   
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