Evaluation of Treated Municipal Wastewater Quality for Irrigation

Abstract

Wastewater reuse is a useful tool in minimizing the amount of wastewater in the environment. Therefore, evaluation of the suitability of Al-Rustamiyah WWTP municipal treated wastewater for irrigation was made according to its compo-sition and the international irrigation water quality standards. In addition, to classify water quality and to evaluate its suitability for irrigation purposes, Sodium Adsorption Ratio (SAR), Soluble Sodium Percentage (SSP) and Residual Sodium Carbonate (RSC) were calculated following standard equations and found experimentally as (2.11), (35.67) and (–12.75) respectively. Plotting the values of conductivity (EC) and sodium absorption ratio (SAR) on the US salinity diagram illustrated that most of the samples fall in the field of C3-S1, indicating high salinity and low sodium water which can be used for irrigation on almost all types of soil without danger of exchangeable sodium. Furthermore, the data indicate slight to moderate degree of restriction on the use of this treated wastewater in irrigation due to chloride hazard. RSC value is negative at all sampling sites, indicating that there is no complete precipitation of calcium and magnesium. Overall, the treated wastewater can be classified with few exceptions as suitable for irrigation use

Effect of sodium adsorption ratio and electric conductivity of the applied water on infiltration in a sandy-loam soil

“…The linear relation between EC and SAR for the applied water is in agreement with the results obtained by Alobaidy et al (2010) and Moasheri et al (2012). Honarbakhsh and Lafdani (2013) also obtained a positive correlation between SAR and Cl of a water with R 2 = 0.6524.…”

Effect of treated sewage effluents on plant cover and soil at Wadi Al Rummah, Qassim Region, Saudi Arabia

“…Hence, the treated sewage effluents at Al Rass led to salination of the soil. Salination of the soil caused by the dispersal of sewage effluents was also reported by Yerasi et al (2013), PerezEspinosa et al (2008), and Alobaidy et al (2010).…”

Controle De Qualidade Da Irrigação Por Gotejamento Com Esgoto Doméstico Por Meio De Gráficos Cusum

“…A cada dia se utiliza mais águas residuárias como alternativa de fonte hídrica, dentre os motivos destaca-se: escassez de água com boa qualidade, rendimento das culturas e o aumento de nutrientes no solo (Singh et al, 2012), diminuição de água residual no meio ambiente visto por Alobaidy et al (2010) e diminuir poluição subterrânea (Muyen et al, 2011). Para a utilização de águas com qualidade físico-química e biológica inferior ao indicado para sistemas de irrigação, é necessário um monitoramento ainda mais preciso e com maior periodicidade, para que não tenha problemas de entupimento e desgaste excessivo dos materiais.…”