Detoxification of Heavy Metals from Leafy Edible Vegetables by Agricultural Waste: Apricot Pit Shell

Bita Tavakoli Hosseinabady,Krishnan Umachandran,Parisa Ziarati,Ebrahim Ballali

doi:10.4172/2161-0525.1000548

Abstract

Soil contamination by heavy metals, though restricted to surface horizons, based on soil texture are occluded, organically complexed, modified and specifically adsorbed based on anthropogenic sources, resulted in toxicity ramification on human health, has been in vogue as a serious environmental problem for last few decades. A laboratory study was planned due to reduction of Lead, Cadmium and Nickel toxicity by a low-cost soil amendment. Apricot (Prunus armeniaca L.) pit shell an abundant and low cost natural resource in Iran was used to adsorbing some heavy metals from contaminated soil of vegetable farmlands. Different adsorption parameters like adsorbent dose, particle size of adsorbent and time of growing vegetable were studied. Composite soil sample were collected from four randomized farmland locations at three agricultural fields (each one more than 10 hectares), in Yazd county in Yazd Province. Cultivated Leafy vegetables were grown under controlled similar physical conditions, including pH, light and demonized watering. Leaves, roots and soil samples were examined, analyses and studied, at various frequencies for heavy metals.

Highlights

Soil contamination by heavy metals, specially originated from anthropogenic sources, as a result of their toxicity ramification on human health, has been known as a serious environmental problem for last few decades [1-18]
The data of heavy metal concentrations in all analyzed samples across the various farming sites were subjected to two-way analysis of variance (ANOVA) to assess the significance of differences in heavy metal concentrations by site, Sample type and their interaction
The fractionation of lead and nickel in 4 edible leafy vegetables cultivated in control soil) untreated by apricot hard shell) and in soils treated by natural adsorbent in different percentage of hard nutshell is completely determined due to find out the adsorption ability of heavy metals by agricultural waste in contaminated soil samples

Summary

Introduction

Soil contamination by heavy metals, specially originated from anthropogenic sources, as a result of their toxicity ramification on human health, has been known as a serious environmental problem for last few decades [1-18]. Bioavailability, mobility, and activity of heavy metals are greatly affected by waste deposition which leads one of the most important factors resulting in environmental degradation. The soil contaminated [4,6] with heavy metal [5,19-25] waste deposition becomes affects seriously the future ecosystems. The environmental sustainability of the human society principally relays on our administration of the natural environment and the ecosystems that establish the platform upon which our civilization is based. Nowadays the environmental pollution with toxic and heavy metals has become a multinational crisis by affecting agriculture and subsidizing to bioaccumulation and bio exaggeration in the food chain

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Conclusion