Cultivation of Microalgae in Industrial Effluent for Simultaneous Pollutant Removal and Biofuel Production

2020 ◽  
pp. 65-84
Author(s):  
S. Rangabhashiyam
Keyword(s):  
Industrial Effluent ◽  
Pollutant Removal ◽  
Biofuel Production

Biochar Synthesis for Industrial Wastewater Treatment: A Critical Review

2020 ◽  
Vol 1008 ◽  
pp. 202-212
Author(s):  
Andy G. Kumi ◽  
Mona G. Ibrahim ◽  
Mahmoud Nasr ◽  
Manabu Fujii
Keyword(s):  
Wastewater Treatment ◽  
Industrial Wastewater ◽  
Wastewater Treatment Plants ◽  
Industrial Effluent ◽  
Pollutant Removal ◽  
Environmental Benefits ◽  
Effluent Treatment ◽  
No Production ◽  
Industrial Wastewater Treatment ◽  
Characterization Methods

Excess sludge generated from wastewater treatment plants (WWTPs) can cause negative impacts on human health, water bodies, aquatic plants, and soil quality. However, the produced sludge could be appropriately managed to obtain various economic and environmental benefits. One of the feasible and practical options of sludge management is the synthesize of biochar via oxygen-limited pyrolysis. The use of biochar adsorbent for pollutant removal offers various advantages such as high adsorption capability, low operating and chemical costs, no production of toxins. Hence, this study addresses the applications of sewage sludge-derived biochar for industrial wastewater treatment. The methods of sludge collection, drying, pulverization, and pyrolysis are illustrated. Biochar characterization methods (SEM, EDX, XRD, and FTIR analyses) and mechanisms of the adsorption process are described. The sludge-derived biochar could be used as an adsorptive material for industrial effluent treatment. Recommendations for future studies that could enhance the adsorption capacity of biochar and modified-biochar are given.

scholarly journals The utilization of bentonite enhanced termite mound soil mixture as filter for the treatment of paint industrial effluent

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Omobolaji Taofeek Opafola ◽  
Adekunle Olorunlowo David ◽  
Fidelis Odedishemi Ajibade ◽  
Hezekiah Oluwoye Adeyemi ◽  
Olorunfunmi Isimioluwa Solana ◽  
...  
Keyword(s):  
Industrial Effluent ◽  
Pilot Scale ◽  
Pollutant Removal ◽  
Small Scale ◽  
Termite Mound ◽  
Soil Mixture ◽  
Point Of Use ◽  
Percentage Weight ◽  
Standards And Regulations ◽  
Indiscriminate Disposal

AbstractThis research investigates the applicability of bentonite enhanced termite mound soil mixture as an alternative filter medium for paint industrial wastewater (PIWW) management in a constructed pilot-scale filtration tank with four different sections. The mixture of bentonite (BC) and termite mound soil (MS) used as the filter was proportioned by percentage weight as (100% MS), $${\text{(5\% BC}} + {\text{95\% MS),}}$$ (5\% BC + 95\% MS), $${\text{(10\% BC}} + {\text{90\% MS),}}$$ (10\% BC + 90\% MS), $${\text{(15\% BC}} + {\text{85\% MS)}}$$ (15\% BC + 85\% MS) and placed into four sections, respectively. The filter materials were compacted, cured and subjected to wastewater loading for 30 weeks. The results obtained from the analysis of the filtrate samples revealed that filter with 15% BC content generally exhibited high and effective pollutant removal efficiencies of 51.3%, 98.9%, and 72.7% for total dissolved solids, total suspended solids, and copper, respectively, while a maximum removal efficiency of 100% was recorded for lead, chromium and cadmium. The pollutants (TDS, TSS, Pb, Cr, Cu and Cd) concentrations of the treated PIWW were below the National Environmental Standards and Regulations Enforcement Agency permissible limits for discharge. Hence, the 15% bentonite and 85% termite mound soil mixtures are recommended for the small-scale paint industries as a point of use measure for effective pollutant removal. Its application would mitigate the degradation of environmental resources caused by indiscriminate disposal of untreated effluent.

NUMERICAL STUDY FOR THAILAND: MATHEMATICAL MODEL OF PRODUCTION AND LOGISTIC PLANNING FOR SUGARCANES USED IN BIOFUEL PRODUCTION

2013 ◽  
Author(s):  
Pancheewa Benjamasutin ◽  
◽  
Ponthong Rijana ◽  
Phongchayont Srisuwan ◽  
Aussadavut Dumrongsiri
Keyword(s):  
Mathematical Model ◽  
Numerical Study ◽  
Biofuel Production ◽  
Logistic Planning

USE OF NORTHERN ECOTYPE SOYBEANS FOR BIOFUEL PRODUCTION

2020 ◽  
pp. 22-30
Author(s):  
SERGEY N. DEVYANIN ◽  
◽  
VLADIMIR A. MARKOV ◽  
ALEKSANDR G. LEVSHIN ◽  
TAMARA P. KOBOZEVA ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Soybean Oil ◽  
Diesel Fuel ◽  
Experimental Studies ◽  
Motor Fuel ◽  
Biodiesel Production ◽  
Biofuel Production ◽  
Exhaust Gases ◽  
Oil Productivity ◽  
Toxic Components

The paper presents the results of long-term research on the oil productivity and chemical composition of soybean oil of the Northern ecotype varieties in the Central Non-Black Earth Region. The authors consider its possible use for biodiesel production. Experiments on growing soybeans were carried out on the experimental fi eld of Russian State Agrarian University –Moscow Timiryazev Agricultural Academy (2008-2019) on recognized ultra-early ripening varieties of the Northern ecotype Mageva, Svetlaya, Okskaya (ripeness group 000). Tests were set and the research results were analyzed using standard approved methods. It has been shown that in conditions of high latitudes (57°N), limited thermal resources of the Non-Chernozem zone of Russia (the sum of active temperatures of the growing season not exceeding 2000°С), the yield and productivity of soybeans depend on the variety and moisture supply. Over the years, the average yield of soybeans amounted to 1.94 … 2.62 t/ha, oil productivity – 388 … 544 kg/ha, oil content – 19…20%, the content of oleic and linoleic fatty acids in oil – 60%, and their output from seeds harvested – 300 kg/ha. It has been established that as soybean oil and diesel fuel have similar properties,they can be mixed by conventional methods in any proportions and form stable blends that can be stored for a long time. Experimental studies on the use of soybean oil for biodiesel production were carried out on a D-245 diesel engine (4 ChN11/12.5). The concentrations of toxic components (CO, CHx, and NOx) in the diesel exhaust gases were determined using the SAE-7532 gas analyzer. The smoke content of the exhaust gases was measured with an MK-3 Hartridge opacimeter. It has been experimentally established that the transfer of a diesel engine from diesel fuel to a blend of 80% diesel fuel and 20% lubrication oil leads to a change in the integral emissions per test cycle: nitrogen oxides in 0.81 times, carbon monoxide in 0.89 times and unburned hydrocarbons in 0.91 times, i.e. when biodiesel as used as a motor fuel in a serial diesel engine, emissions of all gaseous toxic components are reduced. The study has confi rmed the expediency of using soybeans of the Northern ecotype for biofuel production.

The sugar and alcohol industry in the biofuels and cogeneration era: a paradigm change (part II)

2014 ◽  
pp. 97-104 ◽  
Author(s):  
Electo Eduardo Silv Lora ◽  
Mateus Henrique Rocha ◽  
José Carlos Escobar Palacio ◽  
Osvaldo José Venturini ◽  
Maria Luiza Grillo Renó ◽  
...  
Keyword(s):  
Large Scale ◽  
New Technologies ◽  
Process Integration ◽  
Animal Feed ◽  
Raw Materials ◽  
Biofuel Production ◽  
New Paradigm ◽  
Alcohol Industry ◽  
Feed Production ◽  
Steam Parameters

The aim of this paper is to discuss the major technological changes related to the implementation of large-scale cogeneration and biofuel production in the sugar and alcohol industry. The reduction of the process steam consumption, implementation of new alternatives in driving mills, the widespread practice of high steam parameters use in cogeneration facilities, the insertion of new technologies for biofuels production (hydrolysis and gasification), the energy conversion of sugarcane trash and vinasse, animal feed production, process integration and implementation of the biorefinery concept are considered. Another new paradigm consists in the wide spreading of sustainability studies of products and processes using the Life Cycle Assessment (LCA) and the implementation of sustainability indexes. Every approach to this issue has as an objective to increase the economic efficiency and the possibilities of the sugarcane as a main source of two basic raw materials: fibres and sugar. The paper briefly presents the concepts, indicators, state-of-the-art and perspectives of each of the referred issues.

AN ECONOMIC STUDY FOR THE IMPACT OF BIOFUEL PRODUCTION EXPANSION

2018 ◽  
Vol 3 (2) ◽  
pp. 259-260
Author(s):  
I. S. Ali ◽  
A. M. Taryal ◽  
S. A. Abou-El Naga ◽  
M. M. Abd-El Menem
Keyword(s):  
Biofuel Production ◽  
Economic Study ◽  
The Impact
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