Membrane utilization in hazardous metal removal from wastewater in the electronic industry

1987 ◽  
Vol 6 (3) ◽  
pp. 139-144 ◽  
Author(s):  
S. Sternberg
Keyword(s):  
Metal Removal ◽  
Electronic Industry ◽  
Hazardous Metal

Toxic Metal Removal Using Biosorption Process and Inertization of Generated Hazardous Metal-Laden Biosorbent

2017 ◽  
pp. 301-311
Author(s):  
L. Ramrakhiani ◽  
A. Halder ◽  
A. K. Mandal ◽  
S. Majumdar ◽  
S. Ghosh
Keyword(s):  
Metal Removal ◽  
Toxic Metal ◽  
Biosorption Process ◽  
Hazardous Metal

Adsorbents for Removal of Hazardous Metals from waste water and natural water samples: A Review

2021 ◽  
pp. 471-478
Author(s):  
Kanhaya Lal ◽  
Garima Prajapat ◽  
Uma Rathore ◽  
Bhojak N.
Keyword(s):  
Metal Removal ◽  
Low Cost ◽  
Agricultural Waste ◽  
Environmental Contaminants ◽  
Heavy Metal Removal ◽  
Potential Solution ◽  
Industrial Wastewaters ◽  
Natural Adsorbents ◽  
Hazardous Metal ◽  
Waste Food

Wide ranges of low cost adsorbents were used to remove hazardous metal in aqueous solution and wastewater. The low cost adsorbents were usually collected from agricultural waste, seafood waste, food waste, industrial by-product and soil. These adsorbents are readily available in a copious amount. Some of the natural adsorbents appeared as good heavy metal removal, while some were not and require further modifications and improvements to enhance the adsorption capacity. Currently, heavy metals exist in most of the industrial wastewaters and water supplies are among the most severe environmental contaminants. Numerous research works have been conducted in this field, this review includes few potential solution containing papers.

scholarly journals Outlook on the Carbon-Based Materials for Heavy Metal Removal

2021 ◽  
Vol 12 (4) ◽  
pp. 5303-5323
Keyword(s):  
Heavy Metals ◽  
Functional Group ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Carbon Adsorbent ◽  
Water Stream ◽  
Removal Of Heavy Metals ◽  
The Right ◽  
Hazardous Metal ◽  
Carbon Based

Carbon-based materials, including graphene (GR), carbon nanotubes (CNTs), activated carbon, and biochar, are the most common materials often applied to separate heavy metals from the water stream. A key feature of carbon adsorbent is the functional group of its adjustable surfaces. Both GR and CNTs exhibit the most favorable materials and may be the right choice in the future because of their excellent nature and unique structure. In order to commercialize the use of carbon absorbent in the removal of heavy metals, the mechanism of adsorption of carbon on heavy metals must be fully understood. In view of the good properties of carbon-based materials, a detailed study of their characteristics and synthesis, and modifications should be highlighted. Therefore, this article will discuss the properties, modifications, and use of carbon-based materials as adsorbents for various hazardous metal ions.

Performance Analysis on Eco-friendly Machining of Ti6Al4V using Powder Mixed with Different Dielectrics in WEDM

2020 ◽  
Vol 17 (3) ◽  
pp. 8128-8139
Author(s):  
S. Chakraborty ◽  
S. Mitra ◽  
D. Bose
Keyword(s):  
Metal Removal ◽  
Removal Rate ◽  
Machining Process ◽  
Process Efficiency ◽  
Machining Parameters ◽  
Dielectric Fluids ◽  
High Emission ◽  
Pulse On Time ◽  
Pulse Off Time ◽  
Wedm Process

The recent scenario of modern manufacturing is tremendously improved in the sense of precision machining and abstaining from environmental pollution and hazard issues. In the present work, Ti6Al4V is machined through wire EDM (WEDM) process with powder mixed dielectric and analyzed the influence of input parameters and inherent hazard issues. WEDM has different parameters such as peak current, pulse on time, pulse off time, gap voltage, wire speed, wire tension and so on, as well as dielectrics with powder mixed. These are playing an essential role in WEDM performances to improve the process efficiency by developing the surface texture, microhardness, and metal removal rate. Even though the parameter’s influencing, the study of environmental effect in the WEDM process is very essential during the machining process due to the high emission of toxic vapour by the high discharge energy. In the present study, three different dielectric fluids were used, including deionised water, kerosene, and surfactant added deionised water and analysed the data by taking one factor at a time (OFAT) approach. From this study, it is established that dielectric types and powder significantly improve performances with proper set of machining parameters and find out the risk factor associated with the PMWEDM process.

Application of Natural Absorbents for Metal Removal From Waste Water

2012 ◽  
Vol 3 (4) ◽  
pp. 110-111
Author(s):  
B. Mahesh B. Mahesh ◽  
◽  
V. Hema Sailaja ◽  
B. Vijay Kumar ◽  
K. Veera Babu ◽  
...  
Keyword(s):  
Waste Water ◽  
Metal Removal

Investigation on Heavy Metal Removal from a Crude Oil Contaminated Soil using Rhamnolipid Biosurfactant as a New Eco-Friendly Method

2020 ◽  
Vol 57 (6) ◽  
pp. 515-520
Author(s):  
Nayyereh Kholghi ◽  
Hossein Amani ◽  
Shokoufeh Malekmahmoodi ◽  
Alireza Amiri
Keyword(s):  
Heavy Metal ◽  
Crude Oil ◽  
Contaminated Soil ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Rhamnolipid Biosurfactant
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