scholarly journals Role of Phytoremediation in Reducing Cadmium Toxicity in Soil and Water

2018 ◽  
Vol 2018 ◽  
pp. 1-16 ◽  
Author(s):  
Pooja Mahajan ◽  
Jyotsna Kaushal
Keyword(s):  
Heavy Metal ◽  
Metal Removal ◽  
Cadmium Toxicity ◽  
Heavy Metal Removal ◽  
Cost Effective ◽  
Cost Effective Approach ◽  
Hyperaccumulating Plant ◽  
Cd Removal ◽  
Soil And Water

Heavy metals are a noxious form of pollutants present in soil and water. A new plant-based solar energy driven technology, phytoremediation, emerges as eco-friendly and cost-effective approach to remove heavy metal from various media with the help of hyperaccumulating plant species. This review paper aims to provide information on phytoremediation and its mechanisms for heavy metal removal especially to focus on Cadmium (Cd) metal and highlights the role of various hyperaccumulating plants for Cd metal remediation in soil and water. It complies various field case studies which play the important role in understanding the Cd removal through various plants. Additionally, it pinpoints several sources and the effects of Cd and other technologies used for Cd remediation. This paper provides the recent development in mechanisms of Cd hyperaccumulation by different plants, in order to motivate further research in this field.

Cost effective biochar gels with super capabilities for heavy metal removal

RSC Advances ◽  
2016 ◽  
Vol 6 (79) ◽  
pp. 75430-75439 ◽  
Author(s):  
Pan-pan Chen ◽  
Hong-ping Zhang ◽  
Huan-de Liu ◽  
Xue-gang Luo ◽  
Xiao-yan Lin ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Cost Effective

A novel KGM based biochar with super heavy metal removal capacities can be prepared conveniently.

scholarly journals The Potential of Microbial Fuel Cells for Remediation of Heavy Metals from Soil and Water—Review of Application

2019 ◽  
Vol 7 (12) ◽  
pp. 697 ◽  
Author(s):  
Chaolin Fang ◽  
Varenyam Achal
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Microbial Fuel Cells ◽  
Electrode Materials ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
External Energy ◽  
Microbial Electrolysis Cells ◽  
Cadmium And Lead ◽  
Soil And Water

The global energy crisis and heavy metal pollution are the common problems of the world. It is noted that the microbial fuel cell (MFC) has been developed as a promising technique for sustainable energy production and simultaneously coupled with the remediation of heavy metals from water and soil. This paper reviewed the performances of MFCs for heavy metal removal from soil and water. Electrochemical and microbial biocatalytic reactions synergistically resulted in power generation and the high removal efficiencies of several heavy metals in wastewater, such as copper, hexavalent chromium, mercury, silver, thallium. The coupling system of MFCs and microbial electrolysis cells (MECs) successfully reduced cadmium and lead without external energy input. Moreover, the effects of pH and electrode materials on the MFCs in water were discussed. In addition, the remediation of heavy metal-contaminated soil by MFCs were summarized, noting that plant-MFC performed very well in the heavy metal removal.

An Overview of Fruit Waste as Sustainable Adsorbent for Heavy Metal Removal

2013 ◽  
Vol 389 ◽  
pp. 29-35 ◽  
Author(s):  
Norzila Othman ◽  
S. Mohd-Asharuddin ◽  
M.F.H. Azizul-Rahman
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Removal ◽  
Low Cost ◽  
Heavy Metal Removal ◽  
Cost Effective ◽  
Good Efficiency ◽  
Recovery Method ◽  
High Metal Content ◽  
Fruit Waste

Biosorption is an environmental friendly method for metal removal as it can be used as a cost effective and efficient technique for heavy metal removal. A lot of biomass can be choosed as biosorbent such as waste material from food processing and agriculture.ent. This paper will review the potential used of local fruit rind as biosorbent for heavy metal removal in wastewater. Heavy metals have been in various industries and resulted to a toxic condition in aquatic ecosystem. Therefore, various techniques have been employed for the treatment of metal-bearing industrial wastewaters including biological treatment through biosorption. Biosorption offers the advantages of low cost, good efficiency and production of sludge with high metal content is possible to avoid by the existence of metal recovery method from metal loaded biosorbent. The successful application of local fruit waste in treating wastewater containing heavy metals requires a deeper understanding of how biosorbent material proceeds.

Heavy Metal Removal from Domestic Wastewater Employing Live Eichhornia Crassipes

2017 ◽  
Vol 9 (01) ◽  
pp. 47-50
Author(s):  
Lal Ji Verma ◽  
Pramod Kumar Singh ◽  
Saurav Ambastha
Keyword(s):  
Heavy Metal ◽  
Municipal Wastewater ◽  
Metal Removal ◽  
Root Zone ◽  
Heavy Metal Removal ◽  
Sewage Treatment ◽  
Domestic Wastewater ◽  
Cost Effective ◽  
Pollution Source ◽  
Wastewater Purification

This study uses naturally growing water hyacinth for wastewater purification system, this is an alternative technique of heavy metal remediation. These plants enhance the removal of pollutants by consuming part of them in the form of the plant nutrients. The vascular plants cultured in such treatment system perform several functions, including assimilation and storing contaminates, transporting O2 to root zone, and providing a substrate for microbial activity, canal containing floating macrophytes. This applies to municipal wastewater, in particular, where treatment units of different size can be applied at the pollution source and consumes less energy for the running. The effectiveness of wastewater purification by different plants was tested on laboratory and pilot scales. The aquatic plants system offers an environmentally friendly and cost effective technology, which have been used for removing Cadmium, Iron and Copper from wastewater. Batch experiments verified that the plants are capable of decreasing all tested indicators for water quality to levels that permit the use of purified water for irrigation, which poses serious problems in various locations throughout the country. It is shown that mixture of wastewater from in front of Gautam Budha University canal/ Greater Noida’s canal wastewater and Galgotias University sewage treatment plants. The removal efficiency of the Cadmium, Iron and Copper is 74.52%, 75.31% and 67.75% in greater Noida’s canal and 73.72%, 74.99 % and 68.37% in Galgotias University’s wastewater respectively.

scholarly journals Cyanobacterial Extracellular Polymeric Substances for Heavy Metal Removal: A Mini Review

2020 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Ajit Pratap Singh Yadav ◽  
Vinay Dwivedi ◽  
Satyendra Kumar ◽  
Anamika Kushwaha ◽  
Lalit Goswami ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Extracellular Polymeric Substances ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Lethal Effect ◽  
Aqueous System ◽  
Anthropogenic Sources ◽  
Cyanobacterial Species ◽  
High Concentrations

Heavy metals from various natural and anthropogenic sources are becoming a chief threat to the aquatic system owing to their toxic and lethal effect. The treatment of such contaminated wastewater is one of the prime concerns in this field. For decades, a huge array of innovative biosorbents is used for heavy metal removal. Though extensive microbes and their biomolecules have been experimented and have showed great potential but most of them have failed to have the substantial breakthrough for the practical application. The present review emphasis on the potential utilization of the cyanobacteria for the heavy metal removal along with the toxic effect imposed by the pollutant. Furthermore, the effect of significant parameters, plausible mechanistic insights of the heavy metal toxicity imposed onto the cyanobacteria is also discussed in detail. The role of extrapolymeric substances and metallothionein secreted by the microbes are also elaborated. The review was evident that the cyanobacterial species have a huge potential towards the heavy metal removal from the aqueous system ranging from very low to very high concentrations.

Microwave-induced heavy metal removal from dewatered biosolids for cost-effective composting

2019 ◽  
Vol 241 ◽  
pp. 118342 ◽  
Author(s):  
Simeng Li ◽  
Runwei Li ◽  
Youneng Tang ◽  
Gang Chen
Keyword(s):  
Heavy Metal ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Cost Effective

scholarly journals Role of fly ash in heavy metal removal from flue gas. Final report, September 1, 1993--August 31, 1994

10.2172/67253 ◽  
1995 ◽  
Author(s):  
F. Bavarian ◽  
S. Mahuli ◽  
A. Ghosh-Dastidar ◽  
R. Agnihotri ◽  
L.S. Fan
Keyword(s):  
Heavy Metal ◽  
Fly Ash ◽  
Flue Gas ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Final Report

Hydroxyapatite-Based Materials for Heavy Metal Removal in Wastewater Treatment

2020 ◽  
Vol 4 (2) ◽  
pp. 1-5
Author(s):  
Al Bazedi GA
Keyword(s):  
Heavy Metal ◽  
Wastewater Treatment ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Cost Effective ◽  
Precipitation Method ◽  
Efficient Removal ◽  
Hydroxyapatite Powder ◽  
Removal Of Heavy Metals ◽  
Treatment Technologies

Nowadays, undisputable environmental pollution requests endeavors to treat wastewater, particularly containing heavy metal, where wastewater treatment technologies are improving hastily. Hydroxyapatite with micro-porous structure and the large surface area turns into an intense research topic as of its high adsorption capacity. Environmentally friendly Hydroxyapatite powder with the large specific surface is a promising cost-effective precipitation method, for the removal of heavy metals (Al, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) from wastewater. Different studies have revealed the efficient removal of all metals using hydroxyapatite or by modified HA using zeolite or chitosan. The increase of Ca2+ ions content in the treated water suggests an ion exchange mechanism

scholarly journals Dual role of coal fly ash in copper ion adsorption followed by thermal stabilization in a spinel solid solution

RSC Advances ◽  
2018 ◽  
Vol 8 (16) ◽  
pp. 8805-8812 ◽  
Author(s):  
Pengfei Wu ◽  
Yuanyuan Tang ◽  
Zongwei Cai
Keyword(s):  
Fly Ash ◽  
Metal Removal ◽  
Coal Fly Ash ◽  
Heavy Metal Removal ◽  
Copper Ion ◽  
Thermal Stabilization ◽  
Cost Effective ◽  
Spinel Solid Solution ◽  
Ion Adsorption

Coal fly ash is usually used as a cost-effective adsorbent for heavy metal removal, accumulating large amounts of spent coal fly ash that requires further disposal.

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