Role of nanomaterial's as adsorbent for heterogeneous reaction in waste water treatment

2021 ◽  
pp. 130596
Author(s):  
M. Sridevi ◽  
C. Nirmala ◽  
N. Jawahar ◽  
G. Arthi ◽  
Sugumari Vallinayagam ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Heterogeneous Reaction ◽  
Waste Water Treatment

Role of Nanocatalyst (photocatalysts) for waste water treatment

2020 ◽  
Vol 16 ◽  
Author(s):  
Muhammad Sagir ◽  
Muhammad Bilal Tahir
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Nano Materials ◽  
Nano Technology ◽  
Treatment Processes ◽  
Photo Catalysis ◽  
Carbon Nano Tubes ◽  
Large Research

Background: The aim of current study is to understand the application of Nano-technology in the field of water and waste water treatment processes due to increasing scarcity of water as time goes on.The knowledge about the effect of various photo catalysts on the treatment of waste water is also compiled here. Introduction: In recent years, many researches have been working on the projects for the removal of organic & inorganic pollutants from water using photo catalysts which provide more efficient, economical and as well as pollution free processes to some extent. Nanomaterials are found in large research categories and are used in variety of applications. Method: Photo catalysis using Iron, Zinc, Silver, Metal oxides, SnO2, Carbon Nano-tubes, Nano composites & Membranes are focused in this paper. Result: Discussion regarding various parameters as well as future aspects of nanoparticles on waste water treatment are highlighted. Impacts of nanoparticles on health is also incorporated here. Conclusion: Considering the current speed of development and revolution in tech, Nano materials for this type of applications seems very promising.

Synchronous role of coupled adsorption and photocatalytic oxidation on the hybrid nanomaterials of pectin and nickel ferrite leads to the excellent removal of toxic dye effluents

2020 ◽  
Vol 44 (43) ◽  
pp. 18879-18891
Author(s):  
Kanu Gupta ◽  
Komal ◽  
Nidhi ◽  
K. B. Tikoo ◽  
Vinod Kumar ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Nickel Ferrite ◽  
Photocatalytic Oxidation ◽  
Waste Water Treatment ◽  
Dye Molecules ◽  
Hybrid Nanomaterials

Ecofriendly and robust hybrid nanomaterials of pectin and nickel ferrite were succesfully employed for the adsorptive degradation of toxic dye molecules in waste water treatment.

The new technology of waste water treatment by using bioreactors with bio membranous movable bed – biochips

2020 ◽  
Vol 10 (3) ◽  
pp. 276-292
Author(s):  
Maria Y. Savostyanova ◽  
◽  
Lidia А. Norina ◽  
Arina V. Nikolaeva ◽  
◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Water Resources ◽  
Waste Water Treatment ◽  
Combined Treatment ◽  
Research Work ◽  
Pollution Level ◽  
Waste Waters ◽  
Treatment Facilities ◽  
Movable Bed

Retaining of water resources quality is one of the global ecological problems of the modern time. The most promising direction in solving the problem of water resources protection is the reduction of negative environmental influence of waste water from production facilities by upgrading the existing water treatment technologies. To treat utility water, technical and rain water from site facilities of Transneft system entities, the specialists developed and approved standard technological diagrams, which are used in producing treatment facilities. The standard technological diagrams provide for all necessary stages of waste water treatment ensures the reduction of pollution level to normal values. However, during operation of treatment facilities it was established, that to ensure the required quality of waste water treatment with initially high levels of pollution, the new technological solutions are necessary. The author presents the results of scientific-research work, in the context of which the best affordable technologies were identified in the area of the treatment of waste water with increased content of pollutants and non-uniform ingress pattern. On the basis of the research results the technical solutions were developed for optimization of operation of existing waste water treatment facilities by means of using combined treatment of technical and rain waters and utility waste waters and applying bioreactor with movable bed – biochips. The use of bioreactor with movable bed allows the increase in the area of active surface, which facilitates increase and retention of biomass. Biochips are completely immersed into waste waters, and biofilm is formed on the entire volume of immersion area, facilitating retention of biomass and preventing formation of sediments. Due to mixing the floating device with biofilm constantly moves along the whole area of bioreactor, and, in doing so, speeds up biochemical processes and uniformity of treatment. The advantages of a bioreactor with movable bed – its active sludge durability against increased and changing pollutant concentrations, change of waste water temperature and simplicity of application – ensured the possibility of its use for blending utility waters, technical and rain waters.

Sign in / Sign up

Export Citation Format

Share Document