Low Cost Absorbents, Techniques, and Heavy Metal Removal Efficiency

2018 ◽  
pp. 50-79
Author(s):  
Harendra Kumar Sharma ◽  
Irfan Rashid Sofi ◽  
Khursheed Ahmad Wani
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Heavy Metal Contamination ◽  
Metal Removal ◽  
Low Cost ◽  
Heavy Metal Removal ◽  
Future Research ◽  
Removal Of Heavy Metals ◽  
Living Species ◽  
High Concentrations

Heavy metal contamination in water is a serious concern to the environment and human health. High concentrations of heavy metals in the environment can be toxic to a variety of living species. Natural bio-absorbents are abundant and inexpensive and considered a waste if not managed properly. The role of bio-absorbents has been widely studied and has been utilized for the removal of heavy metals. The objective of the chapter is to search the database for different absorbents and their efficiency for the removal of heavy metals. Key words related to the study have been used to select different papers published by the researchers all over the world. A rigorous three-tier process has been utilized by the authors to select the papers from the database for the current study. This chapter has identified a few research gaps in the field of heavy metal removal by using different low cast absorbents that need to be taken into account in future research.

scholarly journals Heavy metal removal from wastewater using various adsorbents: a review

2016 ◽  
Vol 7 (4) ◽  
pp. 387-419 ◽  
Author(s):  
Renu ◽  
Madhu Agarwal ◽  
K. Singh
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Aquatic Ecosystems ◽  
Adsorption Process ◽  
Metal Removal ◽  
Low Cost ◽  
Heavy Metal Removal ◽  
Review Article ◽  
Removal Capacity ◽  
Removal Of Heavy Metals

Heavy metals are discharged into water from various industries. They can be toxic or carcinogenic in nature and can cause severe problems for humans and aquatic ecosystems. Thus, the removal of heavy metals from wastewater is a serious problem. The adsorption process is widely used for the removal of heavy metals from wastewater because of its low cost, availability and eco-friendly nature. Both commercial adsorbents and bioadsorbents are used for the removal of heavy metals from wastewater, with high removal capacity. This review article aims to compile scattered information on the different adsorbents that are used for heavy metal removal and to provide information on the commercially available and natural bioadsorbents used for removal of chromium, cadmium and copper, in particular.

scholarly journals Biomass-Derived Adsorbents for Dye and Heavy Metal Removal from Wastewater

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Kashir Ali ◽  
Muhammad Ussama Javaid ◽  
Zaman Ali ◽  
Muhammad Junaid Zaghum
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Large Scale ◽  
Metal Removal ◽  
Low Cost ◽  
Heavy Metal Removal ◽  
Future Research ◽  
High Concentration ◽  
Potential Threat ◽  
Adsorption Mechanisms

Wastewater has a high concentration of dyes and heavy metals, which are the two most significant contaminants. Due to their high toxicity and vulnerability, they possess a potential threat to human health as well as the ecosystem. There are many ways to eliminate these pollutants from water but adsorption has attained much interest because of its low cost, easy application, and no secondary pollutants. Biomass is considered an ecological burden and a reason for the reduction in the earth’s carrying capacity. These materials may be used as cost-effective adsorbents to remove dyes and heavy metals from wastewater. This paper highlights recent advances made in dye and heavy metal adsorption in the last 10 years. The prime focus of this review paper is on the direct application of these biomasses without any chemical or physical alteration. The removal efficiencies and adsorption capabilities of different biomass-derived adsorbents for the removal of dyes and heavy metals from wastewater are summarised in this study. Additionally, the adsorption mechanisms underlying the removal of dyes and heavy metals using biomass-derived adsorbents have been discussed, with a focus on two kinetic models: pseudofirst-order and pseudosecond-order. Furthermore, the Langmuir and Freundlich isotherms were utilised to verify the experimental findings and to quantify the amount and degree of adsorption favorability. Based on what has been covered in the literature, the conclusion has been drawn. The future research needs are proposed in the area of biomass-derived adsorbent development, their modification for improved efficiencies, and application on large-scale wastewater treatment plants.

Heavy metal removal from wastewater and leachate co-treatment sludge by sulfur oxidizing bacteria

2001 ◽  
Vol 44 (10) ◽  
pp. 53-58 ◽  
Author(s):  
L. C. Aralp ◽  
A. Erdincler ◽  
T. T. Onay
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Municipal Wastewater ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Heavy Metal Concentration ◽  
Organic Content ◽  
Removal Of Heavy Metals ◽  
Sulfur Oxidizing ◽  
Sulfur Oxidizing Bacteria

Heavy metal concentration in sludge is one of the major obstacles for the application of sludge on land. There are various methods for the removal of heavy metals in sludge. Using sulfur oxidizing bacteria for microbiological removal of heavy metals from sludges is an outstanding option because of high metal solubilization rates and the low cost. In this study, bioleaching by indigenous sulfur oxidizing bacteria was applied to sludges generated from the co-treatment of municipal wastewater and leachate for the removal of selected heavy metals. Sulfur oxidizing bacteria were acclimated to activated sludge. The effect of the high organic content of leachate on the bioleaching process was investigated in four sets of sludges having different concentrations of leachate. Sludges in Sets A, B, C and D were obtained from co-treatment of wastewater and 3%, 5%, 7% and 10% (v/v) leachate respectively. The highest Cr, Ni and Fe solubilization was obtained from Set A. Sulfur oxidizing bacteria were totally inhibited in Set D that received the highest volume of leachate.

Potential of Agricultural Waste Material (Ananas cosmos) as Biosorbent for Heavy Metal Removal in Polluted Water

2020 ◽  
Vol 1010 ◽  
pp. 489-494
Author(s):  
Abdul Hafidz Yusoff ◽  
Rosmawani Mohammad ◽  
Mardawani Mohamad ◽  
Ahmad Ziad Sulaiman ◽  
Nurul Akmar Che Zaudin ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Adsorption Capacity ◽  
Metal Removal ◽  
Low Cost ◽  
Agricultural Waste ◽  
Heavy Metal Removal ◽  
Polluted Water ◽  
Maximum Adsorption Capacity ◽  
Pineapple Peel

Conventional methods to remove heavy metals from polluted water are expensive and not environmentally friendly. Therefore, this study was carried out to investigate the potential of agricultural waste such as pineapple peel (Ananas Cosmos) as low-cost absorbent to remove heavy metals from synthetic polluted water. The results showed that Cd, Cr and Pb were effectively removed by the biosorbent at 12g of pineapple peels in 100 mL solution. The optimum contact time for maximum adsorption was found to be 90 minutes, while the optimum pH for the heavy metal’s adsorption was 9. It was demonstrated that with the increase of adsorbent dosage, the percent of heavy metals removal was also increased due to the increasing adsorption capacity of the adsorbent. In addition, Langmuir model show maximum adsorption capacity of Cd is 1.91 mg/g. As conclusions, our findings show that pineapple peel has potential to remove heavy metal from polluted water.

Removal of Particles and Dissolved Metals in Motorway Runoff by Filtration and Adsorption Using the Expanded Polypropylene Media

2009 ◽  
Vol 620-622 ◽  
pp. 125-128 ◽  
Author(s):  
Sung Won Kang ◽  
Seog Ku Kim ◽  
Sang Leen Yun ◽  
Hye Cheol Oh ◽  
Jae Hwan Ahn
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Heavy Metal Contamination ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
The Novel ◽  
Storm Events ◽  
Dissolved Metals ◽  
Metal Levels ◽  
Filtration Device

This research was conducted to investigate the application of the novel upflow-type filtration device using hydrophobia media made of expanded polypropylene (EPP) from driveways site. The higher level of motorway-derived heavy metal contamination exists in stormwater runoff from a road section and the heavy metal levels were higher than the regulated Korean environmental guideline in lake and river. For Cd, Cr, Cu, Pb and Zn, the influent event mean concentrations (EMCs) during 8 storm periods were 2.75, 37.3, 90.5, 118.5 and 546.5 µg/L, respectively. The novel upflow-type filtration device with main mechanism of filtration and adsorption showed removal (>91%, >93%, >85%, >91% and >80%) of the studied heavy metals (Cd, Cr, Cu, Pb and Zn) and differences of medians of removal efficiencies among heavy metals were not statistically signficant by Kruskal-Wallis test (p>0.05) during 8 storm events. It is found that EPP media is very effective at the removal of the heavy metals, and the magnitude of heavy metal removal in a decreasing order is Cr, Cd, Pb, Cu and Zn.

Applications of Nanoparticles in Heavy Metal Removal for Wastewater Treatment at Brahmani River

2020 ◽  
Vol 17 (9) ◽  
pp. 4666-4670
Author(s):  
Himanshu Sekhar Rath ◽  
Mira Das ◽  
Smita Rath ◽  
U. N. Dash ◽  
Alakananda Tripathy
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Removal ◽  
Activated Carbons ◽  
Low Cost ◽  
Groundwater Resources ◽  
Heavy Metal Removal ◽  
Absorption Capacity ◽  
Current Standard ◽  
River Stretch

The goal of this research is to determine the current standard of water quality along the Brahmani River stretch in terms of physico-chemical parameters. The River Brahmani receives a substantial amount of industrial waste in the identified study area and is witness to a large amount of human and agricultural activities. Nowadays Ninety percent of Brahmani’s required water is secured with groundwater resources and it is essential to forecast pollutant content in those resources. Hence, this research aimed at using of nanoparticles such as Activated Carbons (ACs) for removal of heavy metal such as nickel and zinc in Brahmani river using the Langmuir approach. Adsorption seems to be the most widely used method for heavy metal recovery due to its low cost, easy installation and the presence of alternative adsorbents. In addition, the process of adsorption can also be made in use to recover heavy metal ions from wastewater. Despite these advantages, adsorption is hard to commercialize. Due to the strong absorption capacity, high number of pores and wide, common area, nanoparticles are treated as the effective method in removal of heavy metals in rivers. Comparative analysis shows that seventy-one percent of heavy metals can be removed using the nanotechnology model.

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.

scholarly journals Removal of Heavy Metals from Wastewater by Adsorption

2021 ◽  
Author(s):  
Athar Hussain ◽  
Sangeeta Madan ◽  
Richa Madan
Keyword(s):  
Heavy Metals ◽  
Metal Removal ◽  
Negative Impact ◽  
Low Cost ◽  
Agricultural Waste ◽  
Heavy Metal Removal ◽  
Raw Material ◽  
Removal Of Heavy Metals ◽  
Cost Effective Technique ◽  
Adsorption Processes

Adsorption processes are extensively used in wastewater treatment for heavy metal removal. The most widely used adsorbent is activated carbon giving the best of results but it’s high cost limits its use. It has a high cost of production and regeneration. As the world today faces a shortage of freshwater resources, it is inevitable to look for alternatives that lessen the burden on existing resources. Also, heavy metals are toxic even in trace concentrations, so an environmentally safe method of their removal necessitated the requirement of low cost adsorbents. Adsorption is a cost-effective technique and gained recognition due to its minimum waste disposal advantage. This chapter focuses on the process of adsorption and the types of adsorbent available today. It also encompasses the low-cost adsorbents ranging from agricultural waste to industrial waste explaining the adsorption reaction condition. The cost-effectiveness, technical applicability and easy availability of raw material with low negative impact on the system are the precursors in selecting the adsorbents. The novelty of the chapter lies in covering a wide range of adsorbents with their efficiency in removal of heavy metals from wastewater.

Inorganic nano-adsorbents for the removal of heavy metals and arsenic: a review

RSC Advances ◽  
2015 ◽  
Vol 5 (38) ◽  
pp. 29885-29907 ◽  
Author(s):  
Phoebe Zito Ray ◽  
Heather J. Shipley
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Removal Of Heavy Metals ◽  
Inorganic Adsorbents ◽  
Heavy Metals And Arsenic

Schematic of inorganic adsorbents (INA) for heavy metal removal.

Wastewater Treatment in Removal of Heavy Metals

2019 ◽  
pp. 220-240
Author(s):  
Tehseen Yaseen ◽  
Anum Yaseen
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Wastewater Treatment ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
New Process ◽  
Removal Of Heavy Metals ◽  
Treatment Technologies ◽  
Growing Economy ◽  
Nano Science

Nanotechnology is the area of nano science that shows great potential to establish a new process for wastewater treatment. It has been applied on a nanometer scale level. Currently, limited water resources and real treatment of wastewater is a chief requirement for the growing economy. It is in great demand to introduce the progressive wastewater treatment technologies. Therefore, the modern innovative processes in nanomaterial sciences have been appealing the target of scientists. The chapter addresses the developments in nanotechnology with respect to wastewater treatment, especially the removal of heavy metals and to the environmental applications. It will discuss the application of different classes of nanomaterials for wastewater treatment in removal of heavy metals and its possible effects to the environment. Therefore, the scope is to offer an overview of how nanomaterials are causing concerns related to heavy metal removal for water and in the surrounding environment.

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