scholarly journals Occurrence of the heavy metals and PCBs in Accumulation Lake Modrac

2021 ◽  
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Organic Pollutants ◽  
Organic Contaminants ◽  
Graphite Furnace ◽  
Waste Water Treatment ◽  
Elisa Test ◽  
Point Sources ◽  
Industrial Plants ◽  
Oil Derivatives

The accumulation Lake Modrac is a particularly important source of drinking water for inhabitants of the Tuzla region and few local settlements. The most significant point sources of organic contaminants in the accumulation Lake Modrac are waste water from households and industry. In this area, most of the settlements have neither sewage systems nor facilities for waste water treatment. Other potential point sources of pollutants are industrial plants. The most prominent are coal mines (Banovići and Đurđevik), metal and wood industry, plant for plastic production, and oil and oil derivatives warehouse. Few previously conducted surveys in the region showed the presence of the persistent organic pollutants and heavy metals in large extent. The objective of this study was to conduct a water quality survey targeting selected inorganic (Cd, Cr, Cu, Hg, Ni, Pb and As) and organic pollutants in the accumulation Lake Modrac in Bosnia and Herzegovina. The content of polychlorinated biphenyls (PCBs) determined with ELISA test, ranging from 3.23 to 6.19 µg/L (sum of 7PCBs).The most abundant metals (analyzed by graphite furnace AAS and mercury analyzer) at all five sampling locations were Pb (6.79-36.58 µg/L); Ni (5.81-10.43 µg/L) and Hg (1.08-6.10 µg/L).

COPPER (Cu2+) REMOVAL FROM WATER USING NATURAL ZEOLITE FROM GEDANGSARI, GUNUNGKIDUL, YOGYAKARTA

2015 ◽  
Vol 2 (2) ◽  
Author(s):  
Wahyu Wilopo ◽  
Septiawan Nur Haryono ◽  
Doni Prakasa Eka Putra ◽  
I Wayan Warmada ◽  
Tsuyoshi Hirajima
Keyword(s):  
Waste Water ◽  
Economic Growth ◽  
Heavy Metals ◽  
Natural Zeolite ◽  
Adsorption Equilibrium ◽  
Waste Water Treatment ◽  
Batch Test ◽  
Maximum Capacity ◽  
Geological Materials ◽  
Langmuir Adsorption

Development of indusrialization and urbanization not only increase economic growth but also contribute to the environmental degradation, especially contamination of heavy metals in water. In other side, there are many geological materials have capability to immobilize heavy metals. Therefore, the objective of this research is to know the maximum capacity of natural zeolite from Trembono area, Gunung Kidul regency to immobilize copper (Cu2+) from water and to understand their mechanism. This experiment was carry out by a batch test. The result showed that the maximum capacity of zeolite to immobilize Cu (qmax) is 63,69 mmolCu/kg Zeolite according to Langmuir adsorption equilibrium model. In addition, the capability to immobilize Cu will increases due to decreasing the grain size. The result of this research can be used as an alternative for waste water treatment, especially Cu. Keywords: Removal, copper (Cu2+), natural zeolite, Langmuir isotherm

Research Progress in Removing Heavy Metals from Waste Water via Bio-Sorption

2014 ◽  
Vol 587-589 ◽  
pp. 692-695
Author(s):  
Wei Sun
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Heavy Metal ◽  
Water Treatment ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Waste Water Treatment ◽  
Research Progress ◽  
Traditional Methods ◽  
Sorption Method

Bio-absorption has an unparalleled advantage over other traditional methods in removing and recycling heavy metal ions from waste water. Consequently, it has a promising future. In this paper, the traditional methods and the bio-sorption method via which heavy metals are removed from waste water are compared to summarize the mechanism of bio-sorption, the types of bio-sorbent, the factors that can influence bio-sorption and the state of its application in waste water treatment .

scholarly journals Study of Within-year Changes of Hydrocoles Composition in Aeration Tanks in the Process of Waste Water Treatment

2012 ◽  
pp. 90-95
Author(s):  
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Water Treatment ◽  
Activated Sludge ◽  
Waste Water Treatment ◽  
Micro Organisms

Activated sludge micro/organisms classes’ composition has been studied in the annual regime of biological facilities operation. Dependence of heavy metals concentration influence on the hydrocoles’ composition has been shown.

A review on polypyrrole-coated bio-composites for the removal of heavy metal traces from waste water

2019 ◽  
pp. 152808371987127 ◽  
Author(s):  
Subhankar Maity ◽  
Ashish Dubey ◽  
Supriyo Chakraborty
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Heavy Metal ◽  
Industrial Wastewater ◽  
Waste Water Treatment ◽  
Absorption Properties ◽  
Adsorption Capacities ◽  
Ion Absorption ◽  
Removal Of Heavy Metals ◽  
Day By Day

With the development of industrialization and human activities, discharge of waste water containing heavy metals in the environment is increasing day by day. It causes serious threats to the human civilization and the flora and fauna in this earth. Conducting polymers like polypyrrole and polyaniline can be used for treating wastewater due to their inherent ion absorption properties. This article has been focused on the development of polypyrrole coated bio-composites and their potential about the removal of heavy metals from industrial wastewater. Adsorption process can be successfully employed to remove heavy metals from the wastewater by the treatment of water with polypyrrole-coated composites. It was reported in literature that the polypyrrole and polyaniline-coated adsorbents had good adsorption capacities for Mg, Fe, Cu, Cd, Pb, Zn, and Ni. Polypyrrole-coated saw dust, rice husk, chitin, and cellulosic materials could be able to remove Cr, Fe, Cu, and Zn from wastewater. This method would be a replacement for costly conventional methods of removing heavy metal ions from wastewater. It is expected that this method would be an alternative for waste water treatment which will benefit the industries in future.

Green Nanomaterials for Photocatalytic Degradation of Toxic Organic Compounds

2021 ◽  
Vol 23 ◽  
Author(s):  
Saika Ahmed ◽  
Gulshan Ara ◽  
Md. Abu Bin Hasan Susan
Keyword(s):  
Waste Water ◽  
Organic Pollutants ◽  
Low Cost ◽  
Waste Water Treatment ◽  
Ecological Environment ◽  
Green Materials ◽  
End Products ◽  
Synthetic Routes ◽  
Chemical Wastes ◽  
Biological Methods

Abstract: In recent years, nanomaterials as photocatalysts have gained much popularity for the removal of organic pollutants from tainted water using photodegradation, since the available chemical, physical, and biological methods often are time consuming, involve high cost and dumping complications, sometimes posing serious threat to both human health and environmental elements. Use of nanomaterials is less expensive and does not, in general, form aggregated macromolecules. In addition, nanotechnology for waste-water treatment demolishes or alters the risky chemical wastes to harmless end products like H2O and CO2. Nanomaterials synthesized from natural resources or prepared using green synthetic routes are receiving surge of interest as our consciousness to ecological environment and safety rises. ‘Green’ materials of this kind might also show unique strength features and exceptional biodegradability, along with their other notable advantageous properties like minimum threat to environment, efficient recyclablity and low cost compared to synthetic nanomaterials. Such green nanomaterials can also serve as nanocatalysts to treat toxic organic pollutants in a safer way, including photodegradation to less or non-toxic products. This article reviews latest developments on the synthesis of some promising green nanomaterials aiming towards their efficient uses as photocatalysts for degradation of organic pollutants. Strategies to find new green materials as photocatalysts by modification of technologies, and development of novel methodologies for safer treatment of organic pollutants will also be discussed.

Improvement of Efficiency of Waste Water Treatment from Metals Using Flotation Combines

2020 ◽  
Vol 24 (10) ◽  
pp. 4-7
Author(s):  
B.S. Ksenofontov ◽  
A.S. Kozodayev ◽  
R.A. Taranov ◽  
M.S. Vinogradov
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Local Treatment ◽  
Experimental Studies ◽  
Treatment Unit ◽  
Reagent Treatment ◽  
Treatment Facilities ◽  
Technical Solutions

The work deals with the use of flotation combines for the treatment of waste water from heavy metals. The analysis of various methods of treatment of waste water from heavy metals was carried out, which revealed the most promising technical solutions with their possible implementation for modernization of existing treatment facilities of the enterprise. Experimental studies of several versions of technological schemes were carried out on the basis of which a technological scheme of waste water treatment was selected, including all positions of equipment existing at local treatment facilities, and supplemented with a reagent treatment unit, treatment in a flotation complex using reagents, application of filters and pH correction.

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