application of sand–soil–organic matter filter column for removal of cu, ni, zn and cr heavy metals from industrial waste water
نویسندگان
چکیده
abstract in order to investigate the removal of copper, nickel, zinc and chromium from industrial waste water by a sand–soil–organic matter filter column, this experiment was conducted at a completely randomized design with sixteen treatments and four replications. p.v.c tubes (columns) with 66.5 cm height and 10 cm diameter were chosen and filled from down to top by coarse gravel (15 cm), sand (15 cm), soil (2.5 or 5 cm), organic matter (15 cm) and fine gravel (5 cm), respectively. then, 1100 ml of electroplating industry waste water was added to the filter and 30 ml of leachate was collected and transferred to the laboratory for measurement of ph and heavy metals concentrations by atomic absorption spectroscopy technique. the action was repeated at nine pore volumes for each filter. the results showed that application of this filter led to increased ph to neutral and low alkaline range and often meaningful decreased heavy metals concentrations in the leachates during nine pore volumes. the probable mechanisms (such as adsorbtion, precipitation, ion exchange and chelation) by which the filter led to changes in the chemical properties of leachate were also discussed. generally, it seems that the application of sand–soil–organic matter filter column was effective and therefore, could be advisable for the removal of studied heavy metals from industrial waste water.
منابع مشابه
Adsorption of Heavy Metal (Cu, Ni and Zn) from Synthetic Waste Water by Tea Waste Adsorbent
Industrial waste constitutes the major source of various kinds of metal pollution in natural water. There are at least 20 metals which cannot be degraded or destroyed. The important toxic metals are Cu, Ni and Zn. There are numerous methods currently employed to remove and recover the metals from our environment and many physicochemical methods have been proposed for their removal from wastewat...
متن کاملaccumulation of heavy metals (cu, zn, cd and pb) in sediment and selected organisms in lukut river, negrisembilan, malaysia, and toxocological studies of heavy metals (cu, zn, cd and pb) on penaeus monodon (fabricius, 1798) juveniles
چکیده ندارد.
15 صفحه اولRemoval of Heavy Metals from Waste Water Using Water Hyacinth
-Water pollution has become one of the most serious problems of today’s civilization. In the last few years considerable amount of research has been done on the potential of aquatic macrophytes for pollutant removal or even as bio-indicators for heavy metals in aquatic ecosystems. Water hyacinth is one of the aquatic plant species successfully used for wastewater treatment. It is very efficient...
متن کاملEvaluation of Soil Pollution with Heavy Metals (Pb, Zn, Cu, Cr, Ni and V) in Ahvaz Parks (2016)
Background & objectives: Heavy metals in urban parks are one of the most important indicators of urban pollution, as children playing in the park can readily be affected. This research was conducted to evaluate the environmental pollution of some heavy metals in Ahvaz parks. Methods: To this end, 26 sampling stations were selected from 20 parks in Ahvaz city and the soil samples were analyzed b...
متن کاملAdsorption of heavy metals (Cu, Mn, Fe and Ni) from surface water using Oreochromis niloticus scales
Surface water contains a large number of pollutants, particularly human pathogens, organic toxicants and heavy metals. Due to the toxic nature of heavy metals towards marine organisms, its removal from the environment has been a growing issue. The biosorption of heavy metal ions from surface water using fish scales has emerged as an environmentally friendly technique. This study assessed the de...
متن کاملAdsorption of heavy metals (Cu, Mn, Fe and Ni) from surface water using Oreochromis niloticus scales
Surface water contains a large number of pollutants, particularly human pathogens, organic toxicants and heavy metals. Due to the toxic nature of heavy metals towards marine organisms, its removal from the environment has been a growing issue. The biosorption of heavy metal ions from surface water using fish scales has emerged as an environmentally friendly technique. This study assessed the de...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
آب و خاکجلد ۲۳، شماره ۱، صفحات ۰-۰
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023