The effect of animal waste and sewage sludge mix ash on some important soil properties for irrigation

Environmental problems and pollution have undoubtedly been the heaviest cost of the technical development reached by today's society. To this end, although the steps taken in recent years have increased, other dimensions of the problems have emerged. One of them is a waste material with high heavy metal content and toxicity known as in waste sludge which is the product of the facilities for treating our industrial and urban wastewater. The disposal of waste sludge with minimum damage is a serious and researched issue, but there are various solutions depending on the amount, type and content of waste. In this study, the main problem of all of the enterprises based on animal production, including animal manure management problem, is being investigated for the disposal of the mixing ash in the soil by mixing both materials. In addition, the possible impact of the mixture ash on some physical properties of soil and the disposal of heavy metals content in the soil without exceeding the relevant directing limits were evaluated.