Abstract

Mohammad Mousavinezhad^1*, Mojtaba Rezazadeh¹, Farshad Golbabayee¹, Ehsan Sadati²

DOI : http://dx.doi.org/10.13005/ojc/310241

One of the most cost effective way of wastewater treatment is land treatment. This process is defined as the application of wastewater to the land at a controlled rate in adesigned and engineered setting. The purpose of the activity isto obtain beneficial use of these materials, to improve environmental quality, and to achieve treatment and disposal goals in a cost-effective manner. Land treatment systems include slow rate (SR), overland flow (OF), and soil aquifer treatment (SAT) or rapid infiltration (RI). These systems require minimal effort for operation and maintenance. This paper first describe each of these methods by: hydraulic pathways, the way of treatment, and there pros and cons. In the next part some standards and ability of each method in removal of pollutions and chemical compounds described. In this part also some successful application of land treatment reviewed and the ability of these method for crop irrigation and its limitations reviewed.

Land Treatment; slow rate; overland flow; rapid infiltration

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