Evaluation of a simple system of wastewater treatment aiming at use in rural areas

Revista Brasileira de Engenharia Agrícola e Ambiental

Bertoncini, Edna I.¹  Oliveira, Roberto A.¹  Tonetti, Adriano L.¹  Stefanutti, Ronaldo¹  Coraucci Filho, Bruno¹ 

[1] UNICAMP

关键词: sanitation;    nitrification;    phosphorus;    wastewater;    purification    INTRODUÇÃO Segundo o IBGE (2007);    cerca de 18;    71% da população brasileira vivem na área rural;    correspondendo a 31;   

DOI  :  10.1590/S1415-43662010000200015

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

Brazil faces problems related to the large population which lives in the rural areas and discharges the wastewater directly into water bodies. This occurrence contributes not only to environmental damage but also to public health problems. In this case, the use of simple treatments would be beneficial, since the local wastewater could be treated with low cost and be built and operated by local labor even though it is not specialized. A system investigated in UNICAMP and which has these characteristics is, undoubtedly, the association of anaerobic filters with sand filters. The results from the research showed that the effluent had an organic matter concentration lower than the maximum permitted by Brazilian law (Brasil, 2005). Regarding the nitrogen compounds, the sand filters showed a great capacity of nitrification and, in reference to phosphorus, in the deepest depths (0.75 and 1.00 m), the removal was more than 98%.

【 授权许可】

CC BY-NC