Effect of urban wastewater on forage maize in south of Tehran
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2012, Vol 3, Issue 3
Abstract
This study was carried out in order to study the effects of wastewater irrigation on heavy metals accumulation in forage corn in south of Tehran. Experiment design was randomized complete block design with four treatments and three replications. Treatments included pure water (control), wastewater and combination of water with wastewater. Results of the experiments indicated that effect of treatments on accumulations of Pb-Ni and Cu-Zn were significant at %1 and %5 levels, respectively, while there was no significant difference among treatments in respect of macronutrient accumulation such as nitrogen, phosphorous and potassium in different part of corn. Accumulation of elements in corn organs indicate that greatest accumulations of heavy metals except Cd were in roots and for macro elements in grains. Comparison of means using Duncan tests in corn organs indicated there were significant differences in Cu, Cd, Cr, Pb, Zn, Ni in roots, Zn in stalk and P, K in grains, but there was no significant difference among treatments in leaves. Accumulation of Pb in treated corn plants with wastewater was more than 10mg/kg and reached to phototoxic levels for animal feeding. With attention to hazardous effects of Pb on humans and animals this is necessary to settle legal restrictions and limitation to use of municipal sewage and wastewater for irrigation in forage corn in south of Tehran. Since accumulation of Cd and Ni in grains of forage corn under wastewater irrigation are more than normal conditions and reaches to toxin level, it is necessary to self restraint use of ear as human fresh food.
Authors and Affiliations
Majid Harati| Authors email address: Harati.majid@gmail.com, kelidari1973@yahoo.com, faraco1977@yahoo.com, Alireza Kelidari| Authors email address: Harati.majid@gmail.com, kelidari1973@yahoo.com, faraco1977@yahoo.com, Mehdi Tamadon RASTEGAR| Authors email address: Harati.majid@gmail.com, kelidari1973@yahoo.com, faraco1977@yahoo.com
Keywords
Related Articles
- EP ID EP4958
- DOI -
- Views 550
- Downloads 28
Polygamy in the Perspective of Law and Islamic Rights, Philosophy, and its Valuable Principles
One of the issues that was common among the tribes and communities centuries before Islam and have not been based on the certain decrees and regulations was the problem of polygamy so that a man could have multiple wives...
INFLUENCE OF PLANTING DEPTH ON GROWTH, FLOWER PRODUCTION AND BULB YIELD OF THE COMMON HYACINTH AND THE LILY
Greenhouse pot studies were conducted at the University of Sussex, UK to determine the effects of planting depth on growth, flower quality and bulb yield of two ornamental geophytes, hyacinth and the lily. Bulbs were pla...
New Design of Optical Add-Drop Filter Based on Triangular Lattice Photonic Crystal Ring Resonator
In this paper, a new design of add-drop filter based on two-dimensional photonic crystal ring resonator is proposed. The structure is made of a triangular lattice of silicon rods with the refractive index n1=3.4641 which...
Design & Analysis of RF MEMS capacitive switches manufacturing process on the coplanar waveguide
In this paper, we design and simulate RF MEMS switch in suspension bridge mode. We chose the transmission line of type CPW. First, by using TX LINE2003 software, we have designed and calculated the dimensions of transmis...
Simulation of Virtual Environment for Scout Mobile Robot
This study has been set out to fill the perceived gaps within the context of mobile robots literature. For this purpose, a real-life robot which is known as Scout – and one set of which has hitherto been purchased by Ira...