Abstract
High concentrations of heavy metals (up to the pollution level) can disturb the normal ecosystems of natural rivers. There are some methods for treating heavy metals in waste waters. Heavy metal treatments save the ecosystem and clean drinking water. We determined a new adsorption method for heavy metals using a special mushroom compost, which shows the adsorption capacity of this biomass. The laboratory methods were the preparation of stock solutions from heavy metals, the adsorptions of heavy metals by special mushroom compost with a new technique (shaking method), the degradation of samples and analytical control measurements by inductively coupled plasma mass spectrometry. The results show the success of the new adsorption method. The heavy metal adsorption capacity of this mushroom compost seems to be useful on waste water treatment plants because waste water contains heavy metal ions above the limit concentrations. The new absorption technology solution also includes a special economic analysis that examines material flows. In the sustainable economic analysis, as the circular economy focuses on material and energy circularity combined with natural resources (circular economic value (CEV)), the key question is how to make the systems currently operating in a linear form circular. The difference between CEV%BAU(mod) = 45.5% and CEV%Scen(mod) = 87.5% is the amount of material which could be recycled at the end of life cycle of the product, which is the same as the primary raw material, and so mushroom compost is a completely recyclable material.
Highlights
Literature on heavy metal adsorption techniquesOne of the world’s greatest environmental problems is to provide clean and healthy water for people, and treated technological water to industrial companies
Our research has identified a new heavy metal adsorption method that can increase adsorption efficiency by shaking
A special mushroom compost was used as an adsorbent, and we researched the heavy metal adsorption properties of this special compost
Summary
Literature on heavy metal adsorption techniquesOne of the world’s greatest environmental problems is to provide clean and healthy water for people, and treated technological water to industrial companies. Most of the adsorption methods are efficient and lowcost techniques for treating heavy metals from every type. International Journal of Engineering Business Management of waste water.[1,2] In adsorption research, the heavy metal adsorption process can be described by Langmuir and/or Freundlich isotherm models.[3] The Freundlich isotherm is useful for modelling the (ad)sorption of metals on any surface with several materials (e.g. biocarbon).[3,4] the efficiency of metal sorption described by Langmuir or Freundlich isotherms can be questioned, these models can be useful to describe the maximum adsorption capacity (qmax) of heavy metals.[5] The materials used can have a high adsorption capacity in order to achieve the lowest contamination in the treated waste water.[6]
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