scholarly journals Simultaneous Removal of COD and Ammonia Nitrogen Using a Novel Electro-Oxidation Reactor: A Technical and Economic Feasibility Study

2016 ◽  
pp. 4018-4026 ◽  
Author(s):  
Zhuan Cao ◽  
Keyword(s):  
Feasibility Study ◽  
Ammonia Nitrogen ◽  
Economic Feasibility ◽  
Simultaneous Removal ◽  
Electro Oxidation ◽  
Oxidation Reactor

The Experimental Study on Landfill Leachate Treatment by Coagulation-Sedimentation + Electro-Oxidation Joint Reactor

2013 ◽  
Vol 295-298 ◽  
pp. 1472-1477
Author(s):  
Tao Yu ◽  
Tao Huang ◽  
Yin Xi Pan ◽  
Lin Hai Yang
Keyword(s):  
Landfill Leachate ◽  
Elimination Rate ◽  
Ammonia Nitrogen ◽  
Effluent Water ◽  
Treatment Technology ◽  
Leachate Treatment ◽  
Electro Oxidation ◽  
Electro Coagulation ◽  
Oxidation Reactor ◽  
Nitrogen Elimination

The technology used the coagulation-sedimentation + electro-oxidation joint reactor has been studied to treat landfill leachate. First adding FeCl30.4g/L into all leachate for coagulation and sedimentation, its CODcr elimination rate can achieve 35%, but does have no effect on ammonia nitrogen. Then using electro-oxidation reactor to deal with effluent water, the reaction order of electro-oxidation reactor is first-level, as the reaction conditions are 20mA/cm2 of electric current density, 140min of reaction time, the leachate CODcr elimination rate can reach to above 90%, the ammonia nitrogen elimination rate meets to 98% around. Using coagulation-sedimentation + electro coagulation joint reactor to treat landfill leachate can get stable effluent water quality with good treatment effect, has very high elimination efficiency of CODcr and ammonia nitrogen. It is a suitable treatment technology for landfill leachate.

Techno-economic feasibility study on the application of downdraft gasifier in small-scale red clay bricks industries

2021 ◽  
Author(s):  
Murugan Paradesi Chockalingam ◽  
Navaneethakrishnan Palanisamy ◽  
Saji Raveendran Padmavathy ◽  
Edwin Mohan ◽  
Beno Wincy Winsly ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Economic Feasibility ◽  
Small Scale ◽  
Red Clay ◽  
Downdraft Gasifier ◽  
Clay Bricks

scholarly journals Techno-Economic Feasibility Study of Renewable Power Systems for a Small-Scale Plasma-Assisted Nitric Acid Plant in Africa

Processes ◽  
2016 ◽  
Vol 4 (4) ◽  
pp. 54 ◽  
Author(s):  
Aikaterini Anastasopoulou ◽  
Sughosh Butala ◽  
Bhaskar Patil ◽  
John Suberu ◽  
Martin Fregene ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Power Systems ◽  
Feasibility Study ◽  
Economic Feasibility ◽  
Small Scale ◽  
Acid Plant ◽  
Renewable Power

scholarly journals Sustainability and feasibility assessments of nanobubble aeration technology in economic-socio environment of Penaeus vannamei shrimp farming

2021 ◽  
Vol 33 ◽  
pp. 05005
Author(s):  
Lily Susanti ◽  
Suyud Warno Utomo ◽  
Noverita Dian Takarina
Keyword(s):  
Net Present Value ◽  
Ammonia Nitrogen ◽  
Payback Period ◽  
Economic Feasibility ◽  
Shrimp Farming ◽  
Penaeus Vannamei ◽  
Present Value ◽  
Community Members ◽  
The Social ◽  
Total Ammonia

Penaeus vannamei shrimp farming in Indonesia is faced with several challenges in the environmental, economic, and social aspects. Therefore, this study aims to assess the benefits of novel nanobubble aeration systems for the ecosystem, businesses, and communities. This is an experimental study conducted by comparing P. vannamei post larva 10 reared at a density of 2000 inds./L in a pond treated with nanobubble and without treatments (control). Furthermore, the Net Present Value (NPV) and payback period were calculated to assess the economic feasibility of nanobubble, while community interviews were used for the social sectors. Based on the results, environmental wastes of shrimp farming in form of total ammonia nitrogen (TAN) were reduced by 9% from 2.58 mg/l (95%CI: 0,91, 4,25) in control compared to 2.35 mg/l (95%CI: 0,86, 3,84) in treatment. Furthermore, the revenues from post larva sales for five years and nanobubble investment costs showed that the estimated NPV was IDR 64,824,374 with a payback period of 1.7 years. The interviews on traditional shrimp farming showed that 61.1% to 72.2% of community members agreed on the use of nanobubble aeration to support livelihoods. Therefore, the use of nanobubbles is feasible to support sustainable P. vannamei farming.

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