The overall goal of this study is investigating the environmental impacts
of using wastewater effluent of industrial states in irrigation of green space.
For this purpose, industrial state of Shokouhieh in Qom Province in central of
Iran was selected as a case study. Firstly, the quality and quantity of
inputting wastewater into refinery and outputting wastewater effluent were
measured on important parameters of pH, TDS, TSS, COD, BOD and wastewater
temperature in refinery laboratory of industrial state of Qom Shokouhieh during
12 months from March 2012 to March 2013. Then analysis of chemical, biological
and physical indicators of irrigation wastewater (effluent) and measurement of
heavy metals were done in June 2012 and January 2013 according to the standards
instruction for the water and wastewater treatment. Also, heavy metals, EC, pH,
and Mg2+, Ca2+, Na+, k+ of soil of
industrial estate of Qom Shokouhieh were studied. Then, Rapid Impact Assessment
Method (RIAM) and Entropy Method were used to analyze the data. In Rapid Impact
Assessment Method, socio-cultural, physicochemical, biological and economic
environments get the highest negative impacts respectively. In Entropy Method after
weighting the environmental factors, public health and other disease parameters
with the weight of 0.147, soil chemical properties with the weight of 0.136,
soil toxicity with the weight of 0.126 were allocated the first rate up to the
third rate respectively. After comparing the results of these two methods with
each other, the main limitation of using wastewater effluent of industrial
estate of Qom Shokouhie in irrigation of green space is entering chemical
pollutants (nitrate) into groundwater, salinity and toxicity of soil of industrial
state and endangerment of workers and labors public health who work in
industrial state of Qom Shokouhie (specially the labors who exposure directly
with the wastewater effluent and labors work in refinery).