scholarly journals Development of Phytoremediation Technology For Arsenic Removal-A State of Art

2021 ◽  
pp. 112-132
Author(s):  
Dr. Nitin W. Ingole ◽  
Vaibhav R. Dhawale
Keyword(s):  
Heavy Metals ◽  
Arsenic Removal ◽  
Polluted Soil ◽  
Wild Plants ◽  
Contaminated Water ◽  
Toxic Heavy Metals ◽  
Practical Applications ◽  
Physical Chemical ◽  
Soil Phytoremediation ◽  
Removal Of Arsenic

Toxic heavy metals and metalloids, like lead, mercury, arsenic, and selenium, are perpetually free into the surroundings atmosphere. There is a vital need to develop low-priced, effective, and supportable technique for removal or detoxification. Plant primarily based approaches, like phytore mediation, are unit comparatively cheap since they are performed in place and are solar-driven. Now this review, Specific advances in plant-based approaches for the remediation of contaminated water and soil. Phytoremediation is an alternate technology to remove of heavy metals in polluted soil. Wild plants were chosen for arsenic removal experiment. Removal of arsenic by conventional method is very costly; this paper focuses the review on method of phyto remediation to remove arsenic from soil. This method is being aesthetically pleasing and is on average tenfold cheaper than other physical, chemical or thermal remediation methods. This paper attempted to provide a brief review on recent progresses in research and practical applications of phytoremediation for soil and water resources.

scholarly journals TOXICOLOGICAL AND MICROBIOLOGICAL ESTIMATION LEVEL OF POLLUTION ECOSYSTEMS IN THE INDUSTRIAL REGION OF UKRAINE – KRIVOY ROG CITY

2020 ◽  
Vol 73 (9) ◽  
pp. 1962-1967
Author(s):  
Luibov V. Hryhorenko ◽  
Svitlana Yu. Yehorova
Keyword(s):  
Heavy Metals ◽  
Water Samples ◽  
Iron Ore ◽  
Wild Plants ◽  
Aquatic Biota ◽  
Toxic Heavy Metals ◽  
Drinking Purposes ◽  
Ore Processing ◽  
Permissible Levels ◽  
Scientific Substantiation

The aim: Scientific substantiation necessary of PMWW application for the ecologically safe formation of the secondary ecosystems in the mining and iron ore processing areas. Materials and methods: Sanitary-chemical investigation of water samples (n=132); biological objects – plants and aquatic biota was conducted on the content of Pb, Cd, Zn, Mn, Cu, Cr, Ni, Fe (n=112); wild plants samples (n=135); sanitary-microbiological and parasitological indicators 1 – 3 years old waste water sludge (WWS) (n = 68). Results: Overnormal concentrations of salt had been found in water samples, taken from the river Inhulets (2.1 MPL), sulfates and carbonates (2.7 MPL), iron (2.1 MPL), chloride (1.7 MPL), magnesium (3.1 MPL). In wells from nearest villages water is not suitable for drinking purposes and contains total sum of salts – 4.97 MPL, sulfates and carbonates – 5.16 MPL, cadmium – 3.7 MPL, lead – 1.53 MPL. Thus, the toxic heavy metals concentrations (Pb, Cd, Zn, Mn, Cu, Cr, Ni, Fe) in the fish and amphibians did not exceed the permissible levels. Conclusions: Total pollution of the soil within six months after application of sludge correspond to the “permissible” level (Zc=1.61). Use of clearing facilities sludge aged from 1.5 years old and of longer in the amount 15 kg/m2 did not lead to increased concentration of heavy metals in the top layer of dumps.

Detoxification of toxic heavy metals by serine protease inhibitor isolated from polluted soil

2019 ◽  
Vol 143 ◽  
pp. 104718 ◽  
Author(s):  
Arkadeep Mukherjee ◽  
Rajiv Yadav ◽  
Roland Marmeisse ◽  
Laurence Fraissinet-Tachet ◽  
M. Sudhakara Reddy
Keyword(s):  
Heavy Metals ◽  
Protease Inhibitor ◽  
Serine Protease ◽  
Serine Protease Inhibitor ◽  
Polluted Soil ◽  
Toxic Heavy Metals

scholarly journals Characterization of Sewage Sludge for Quality Assessment and Its Safe Utilization in Agriculture

2021 ◽  
pp. 28-35
Author(s):  
Surendra Singh Jatav ◽  
Satish Kumar Singh ◽  
Abhik Patra ◽  
Hanuman Singh Jatav ◽  
Kiran Kumar Mohapatra ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Plant Growth ◽  
Environmental Concern ◽  
Biochemical Properties ◽  
Agricultural Field ◽  
Soil Environment ◽  
Toxic Heavy Metals ◽  
Soil Application ◽  
Physical Chemical

The current investigation was undertaken to explore the physico-biochemical properties of sewage sludge (SS) and its feasible application in agricultural field as an organic manure as source of nutrients with to solve the environmental concern. Sewage sludge samples were collected from sewage treatment plants (STP), Bhagwanpur, Varanasi, Uttar Pradesh, India and passed through a 2 mm sieve for further analysis of different physical, chemical and biological parameters. The treated sewage sludge consists of both major and micro nutrients along with a good amount of organic matter. Application of this sewage sludge has the ability to enhance the physical, chemical and biological properties of soil which is beneficial for plant growth and development sustainable soil environment. However, it also contains some amount of toxic heavy metals and organic pollutants that can adversely affect soil environment depending on the origin source of sewage sludge, and treatment process of sewage sludge. Furthermore, the toxic elements go through the food chain due to its uptake and accumulation by crops posing a possible threat to human health. Sewage sludge application in soil offers essential nutrients particularly for plant growth, maintains the organic carbon in soil and decreases environmental concern with economic factors that restrict landfill or incineration disposal of sewage sludge. However, a careful assessment of the characteristics of sewage sludge is required prior to its soil application to improve the soil health without causing environmental hazard. The SS analyzed in the present study had heavy metals content but was within permissible limits as resulted its suitable for soil application as source of nutrients.

Arsenic Removal by Precipitation with Calcium Phosphate Hydroxyapatite

2012 ◽  
Vol 506 ◽  
pp. 413-416 ◽  
Author(s):  
W. Dungkaew ◽  
K.J. Haller ◽  
A.E. Flood ◽  
J.F. Scamehorn
Keyword(s):  
Calcium Phosphate ◽  
Water Sample ◽  
Removal Efficiency ◽  
Arsenic Removal ◽  
Arsenic Speciation ◽  
Arsenic Concentration ◽  
Contaminated Water ◽  
Low Levels ◽  
Removal Of Arsenic ◽  
Key Parameter

The removal of arsenic from synthetic arsenic contaminated water sample by precipitating arsenic (in the form of arsenate oxyanion) with calcium phosphate hydroxyapatite, HAp, was studied under conditions that induce arsenate incorporated calcium phosphate hydroxyapatite, Ca (P/As)HAp, to form. Arsenate is able to substitute for a fraction of the phosphate in HAp host material as it forms. Consequently, arsenic is successfully removed from the contaminated water achieving up to 99% arsenic removal from 25 ppm initial arsenic concentration. The Ca:(P+As) and P:As mole ratios were found to play an important role in arsenic removal efficiency. Higher Ca:(P+As) and P:As mole ratios give higher arsenic removal efficiency. Surprisingly, the pH of the initial anion solution, a key parameter in arsenic speciation, was found to not have a significant effect on arsenic removal by this process. The advantage of this process is that the precipitation can occur rapidly at relatively low levels of arsenic contamination, implying an easy and inexpensive process for arsenic removal can be developed based on this approach.

Synthesis and characterization of radiation grafted films for removal of arsenic and some heavy metals from contaminated water

2012 ◽  
Vol 81 (10) ◽  
pp. 1606-1611 ◽  
Author(s):  
M.N.K. Chowdhury ◽  
M.W. Khan ◽  
M.F. Mina ◽  
M.D.H. Beg ◽  
Maksudur R. Khan ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Synthesis And Characterization ◽  
Contaminated Water ◽  
Removal Of Arsenic

Synthesis and characterization of RGO/zeolite composites for the removal of arsenic from contaminated water

RSC Advances ◽  
2015 ◽  
Vol 5 (45) ◽  
pp. 35352-35360 ◽  
Author(s):  
M. Khatamian ◽  
N. Khodakarampoor ◽  
M. Saket Oskoui ◽  
N. Kazemian
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Arsenic Removal ◽  
Synthesis And Characterization ◽  
Contaminated Water ◽  
The Novel ◽  
Zeolite A ◽  
Reduced Graphene ◽  
Removal Of Arsenic

The novel composite RGO/Cu-ZEA (1 : 1) (prepared from reduced graphene oxide (RGO) and Cu-exchanged zeolite A) revealed the highest efficiency for arsenic removal from contaminated water.

The application of biochar to screen printing liquid waste polluted land, its effect in soil, mustard greens to heavy metals (Fe, Cr)

2018 ◽  
Vol 22 (3) ◽  
pp. 224-234 ◽  
Author(s):  
I. Putu Sujana
Keyword(s):  
Heavy Metals ◽  
Screen Printing ◽  
Liquid Waste ◽  
Polluted Soil ◽  
Biological Characteristics ◽  
Chicken Manure ◽  
Content Type ◽  
Rice Hulls ◽  
Physical Chemical ◽  
Coconut Shell Biochar

Purpose The purpose of this paper is to analyse the screen printing liquid waste polluted soil physical, chemical and biological characteristics, with the unpolluted soil, and to analyse the application of some types of biochar towards the growth of mustard greens plants and the concentration of heavy metals Fe, Cr on the screen printing liquid waste polluted soil. Design/methodology/approach This research was conducted in a green house by using fully randomized design, split plot design pattern, with three replications. The main plot is the type of biochar, and the subplot is the dosage of biochar. The biochar consists of four types (B1 = chicken manure biochar, B2 = coconut shell biochar, B3 = rice hulls biochar and B4 = mahogany woods biochar). The dosage of biochar consists of four levels (D0 = control, D1 = 5 ton/hectare, D2 = 10 ton/hectare and D3 = 15 ton/hectare). The tested variable is being analysed by using analysis of variance (ANOVA). Findings The screen printing liquid waste polluted soil physical, chemical and biological characteristics analysis shows that the soil pH is neutral, a low C organic, a low N total, a high P, CEC and base saturation, while the texture is soft. The analysis results of rice hulls biochar physical, chemical and biological characteristics are quantitatively better in comparison with chicken manure biochar, coconut shell biochar and mahogany biochar. The quantitative application of rice hulls biochar15 ton/hectare dosage can increase the growth of mustard greens, and also, it recovers the soil characteristics by heavy metals total rate of 14.11 ppm Fe and 0.95 ppm Cr from the plant, while 209.05 ppm Fe and 4.12 ppm Cr were found in the soil. Originality/value This is one of few studies the biochar to screen printing liquid waste polluted lands. Currently, numerous kinds of chemical substances have been applied in a form of fertilizer and pesticide into the soil. Other activities like transporting the crop residues, and the contamination of irrigation water that is caused by screen printing liquid waste, have also affected the soil. It becomes degraded where the soil becomes compact and losses its nutrients, and it is containing heavy metals material that is toxic for plants. Biochar is applied into the polluted soil to improve the soil, which is hard to decompose and is long-lasting in the soil. These days, both the raw or ready food products are exposed to the heavy metals with a large and concerning number, especially in big cities which most of the soil is polluted.

scholarly journals Application of Metal Oxide Heterostructures in Arsenic Removal from Contaminated Water

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Lei Chen ◽  
Hongchuan Xin ◽  
Yuan Fang ◽  
Cong Zhang ◽  
Feng Zhang ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Arsenic Removal ◽  
High Surface ◽  
High Surface Area ◽  
Contaminated Water ◽  
Arsenic Adsorption ◽  
Carcinogenic Effect ◽  
Oxide Heterostructures ◽  
Practical Applications ◽  
Adsorption Processes

It has become one of the major environmental problems for people worldwide to be exposed to high arsenic concentrations through contaminated drinking water, and even the long-term intake of small doses of arsenic has a carcinogenic effect. As an efficient and economic approach for the purification of arsenic-containing water, the adsorbents in adsorption processes have been widely studied. Among a variety of adsorbents reported, the metal oxide heterostructures with high surface area and specific affinity for arsenic adsorption from aqueous systems have demonstrated a promising performance in practical applications. This review paper aims to summarize briefly the metal oxide heterostructures in arsenic removal from contaminated water, so as to provide efficient, economic, and robust solutions for water purification.

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