نتایج جستجو برای: blastoxygen furnace sludge
تعداد نتایج: 25871 فیلتر نتایج به سال:
Since potassium is essential for plant nutrition, should this element be deficient in sewage sludge used for plant fertilization supplementary mineral potassium fertilization is necessary. The aim of the present study has been to evaluate the effect of fertilization with organic materials on maize yield, its potassium concentrations and the content of bioavailable forms of potassium in soil of ...
Background and purpose: Environmental pollution by heavy metals and their transfer to soil and crops are a growing global problem. This study aimed to measure the concentrations of heavy metals in wastewater and sludge wastewater treatment plant in Gorgan, Iran. Materials and methods: In this cross-sectional study, 176 samples of effluent, and returned and dried sludges were analyzed in wast...
Several industrial processes produce large amounts of heavy metals-rich wastes, which could be considered as “trash-can raw materials”. The incorporation in ceramic systems can be regarded as a key process to permanently incorporate hazardous heavy metals in stable matrixes. In particular the aim of this work is to prepare and evaluate environmental risk assessment of coloured glass and glass-c...
Ferrous metallurgy enterprises continuously fill dumps with steelmaking and blast furnace sludge high zinc content. Sludge occupying significant territories of is not involved in production harms the environment. Since leads to formation deposits furnace, manufacturers cannot involve this sinter processing. In addition, working can lead problems such as decrease iron content sinter, productivit...
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