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1. Agro-environmental impacts, carbon sequestration and profit analysis of blended biochar pellet application in the paddy soil-water system

Author:
Ravindran, Balasubramani,   et al.   ; Shin, JoungDu; Jang, EunSuk; Park, SangWon; Chang, Soon Woong;     Show all 5 Authors
Source:
Journal of environmental management 2019 v.244 pp. 92-98
ISSN:
0301-4797
Subject:
ammonium nitrogen; biochar; carbon dioxide; carbon sequestration; composted manure; grain yield; nitrate nitrogen; nitrogen; nitrogen fertilizers; paddies; paddy soils; phosphates; phosphorus; pig manure; potassium; rice; slow-release fertilizers; soil water
Abstract:
... The application of biochar pellet blended with pig manure compost was investigated to estimate its agro-environmental impacts and to evaluate its soil carbon sequestration and profit analysis during rice cultivation. The experiment consisted of four different treatments such as control as pig manure compost only, pig manure compost pellet (PMCP), biochar pellet blended with biochar and pig manure ...
DOI:
10.1016/j.jenvman.2019.04.099

2. Techno-economic estimation of wastewater phycoremediation and environmental benefits using Scenedesmus obliquus microalgae

Author:
Ravindran, Balasubramani,   et al.   ; Ansari, Faiz Ahmad; Gupta, Sanjay Kumar; Nasr, Mahmoud; Rawat, Ismail; Bux, Faizal;     Show all 6 Authors
Source:
Journal of environmental management 2019 v.240 pp. 293-302
ISSN:
0301-4797
Subject:
Fourier transform infrared spectroscopy; Scenedesmus obliquus; ammonium; biomass; carbohydrates; carrying capacity; chemical oxygen demand; cost benefit analysis; ecosystem services; energy; lipids; microalgae; moieties; nitrates; operating costs; phosphates; specific growth rate; thermal analysis; wastewater
Abstract:
... This study investigated the dual application of Scenedesmus obliquus for wastewater phycoremediation and biochemical component accumulation in microalgal cells. The microalgae grown in wastewater showed micro-elements uptake and removal efficiencies of 71.2 ± 3.5% COD, 81.9 ± 3.8% NH4+, ∼100.0% NO3−, and 94.1 ± 4.7% PO43−. The growth profile of Scenedesmus obliquus indicated a specific growth rate ...
DOI:
10.1016/j.jenvman.2019.03.123

3. Thermophilic anaerobic digestion of model organic wastes: Evaluation of biomethane production and multiple kinetic models analysis

Author:
Ravindran, Balasubramani,   et al.   ; Nguyen, Dinh Duc; Jeon, Byong-Hun; Jeung, Jae Hoon; Rene, Eldon R.; Banu, J. Rajesh; Vu, Cuong Manh; Ngo, Huu Hao; Guo, Wenshan; Chang, Soon Woong;     Show all 10 Authors
Source:
Bioresource technology 2019 v.280 pp. 269-276
ISSN:
0960-8524
Subject:
agricultural wastes; anaerobic digestion; biogas; cattle; kinetics; methane; methane production; models; organic wastes; slaughterhouses
Abstract:
... The main aim of this work was to test various organic wastes, i.e. from a livestock farm, a cattle slaughterhouse and agricultural waste streams, for its ability to produce methane under thermophilic anaerobic digestion (AD) conditions. The stability of the digestion, potential biomethane production and biomethane production rate for each waste were assessed. The highest methane yield (110.83 mL C ...
DOI:
10.1016/j.biortech.2019.02.033

4. Positive effects of compost and vermicompost produced from tannery waste-animal fleshing on the growth and yield of commercial crop-tomato (Lycopersicon esculentum L.) plant

Author:
Ravindran, Balasubramani,   et al.   ; Lee, Sang Ryong; Chang, Soon Woong; Nguyen, Dinh Duc; Chung, Woo Jin; Balasubramanian, Balamuralikrishnan; Mupambwa, Hupenyu Allan; Arasu, Mariadhas Valan; Al‐Dhabi, Naif Abdullah; Sekaran, Ganesan;     Show all 10 Authors
Source:
Journal of environmental management 2019 v.234 pp. 154-158
ISSN:
0301-4797
Subject:
Solanum lycopersicum var. lycopersicum; animal manures; animals; crop production; industrialization; leaves; physicochemical properties; plant height; solid wastes; tanneries; tannery waste; tomatoes; vermicomposts
Abstract:
... Accumulation of solid waste has intensified with the increase in world population and industrialization. Most importantly, wastes of animal origin such as animal manures and tannery wastes are a major under-utilized resource in most countries with potential for utilization in crop production. This study evaluated the potential of solid state hydrolyzed tannery animal fleshing (SSF-ANFL) and submer ...
DOI:
10.1016/j.jenvman.2018.12.100

5. Influence of biochar on physico-chemical and microbial community during swine manure composting process

Author:
Ravindran, Balasubramani,   et al.   ; Nguyen, Dinh Duc; Chaudhary, Dhiraj Kumar; Chang, Soon Woong; Kim, Jaisoo; Lee, Sang Ryong; Shin, JoungDu; Jeon, Byong-Hun; Chung, SeokJoo; Lee, JaeJoung;     Show all 10 Authors
Source:
Journal of environmental management 2019 v.232 pp. 592-599
ISSN:
0301-4797
Subject:
Lepidium sativum; ammonia; animal manure management; bamboos; biochar; bulk density; carbon nitrogen ratio; composting; economic impact; gas emissions; microbial communities; microorganisms; nitrate nitrogen; nutrients; organic matter; phytotoxicity; pig manure; porosity; sawdust; sorption; temperature; toxic substances; water holding capacity
Abstract:
... Excessive nutrients and toxic gas emissions from animal manure management are of great global concern, with negative environmental and economic consequences worldwide. Due to biochar recalcitrance and sorption properties, this study investigated the effect of the biochar(BC) derived from bamboo, amendment on swine manure(SM) composting efficiency through physical, physio-chemical, gaseous emission ...
DOI:
10.1016/j.jenvman.2018.11.119

6. Rapid biosynthesis and characterization of silver nanoparticles from the leaf extract of Tropaeolum majus L. and its enhanced in-vitro antibacterial, antifungal, antioxidant and anticancer properties

Author:
Ravindran, Balasubramani,   et al.   ; Valsalam, Saritha; Agastian, Paul; Arasu, Mariadhas Valan; Al-Dhabi, Naif Abdullah; Ghilan, Abdul-Kareem Mohammed; Kaviyarasu, K.; Chang, Soon Woong; Arokiyaraj, S.;     Show all 9 Authors
Source:
Journal of photochemistry and photobiology 2019 v.191 pp. 65-74
ISSN:
1011-1344
Subject:
Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; Tropaeolum majus; X-ray diffraction; antifungal properties; antineoplastic activity; antioxidant activity; bacteria; biosynthesis; cell lines; chemical constituents of plants; crystal structure; doxorubicin; ethanol; gas chromatography-mass spectrometry; infectious diseases; inhibitory concentration 50; ions; leaf extracts; medicinal plants; nanocrystals; nanoparticles; nanosilver; phenylacetic acid; reducing agents; scanning electron microscopy; silver; spectral analysis; therapeutics
Abstract:
... Eco-friendly biosynthesis of nanoparticles from medicinal plants as reducing agent has gained importance due to its potential therapeutic uses. In the present study Silver nanoparticles (AgNPs) were eco-friendly synthesized using the leaf extracts of the medicinal plant Tropaeolum majus. The obtained AgNPs were characterized by UV - visible spectrum, FTIR, SEM and XRD which clearly showed the redu ...
DOI:
10.1016/j.jphotobiol.2018.12.010

7. Influence of microbial diversity and plant growth hormones in compost and vermicompost from fermented tannery waste

Author:
Ravindran, Balasubramani,   et al.   ; Wong, Jonathan W.C.; Selvam, Ammaiyappan; Sekaran, Ganesan;     Show all 4 Authors
Source:
Bioresource technology 2016 v.217 pp. 200-204
ISSN:
0960-8524
Subject:
Eudrilus eugeniae; bioreactors; cattle manure; earthworms; gibberellic acid; indole acetic acid; kinetin; microorganisms; plant litter; tannery waste; value-added products; vermicomposting; vermicomposts
Abstract:
... This study focuses on the effect of the epigeic earthworm Eudrilus eugeniae (with and without addition) to transform solid state fermented (SSF) and submerged (SmF) state fermented TFL mixed with cow dung and leaf litter into value added products in compost and vermicompost bioreactors respectively. The significant role of microbes was identified during compost and vermicompost process. In additio ...
DOI:
10.1016/j.biortech.2016.03.032

8. Potential of Effective micro-organisms and Eisenia fetida in enhancing vermi-degradation and nutrient release of fly ash incorporated into cow dung–paper waste mixture

Author:
Ravindran, Balasubramani,   et al.   ; Mupambwa, Hupenyu Allan; Mnkeni, Pearson Nyari Stephano;     Show all 3 Authors
Source:
Waste management 2016 v.48 pp. 165-173
ISSN:
0956-053X
Subject:
Eisenia fetida; bacteria; carbon nitrogen ratio; compost maturity; cows; earthworms; fly ash; mineralization; organic matter; phosphates; phosphorus; researchers; solubilization; vermicomposting; vermicomposts; wastes
Abstract:
... The interactions between earthworms and microorganisms activity has prompted several researchers to evaluate the potential of artificially inoculating vermicomposts with additional specific microbes, with the intention of enhancing the vermicomposting process. This study evaluated the potential of inoculating fly ash (F)–cow dung–paper waste (CP) mixture (F–CP) with a specialized microbial cocktai ...
DOI:
10.1016/j.wasman.2015.10.001

9. Fate of extracellular polymeric substances of anaerobically digested sewage sludge during pre-dewatering conditioning with Acidithiobacillus ferrooxidans culture

Author:
Ravindran, Balasubramani,   et al.   ; Murugesan, Kumarasamy; Selvam, Ammaiyappan; Kurade, Mayur B.; Yu, Shuk-Man; Wong, Jonathan W.C.;     Show all 6 Authors
Source:
Bioresource technology 2016 v.217 pp. 173-178
ISSN:
0960-8524
Subject:
Acidithiobacillus ferrooxidans; energy; filtration; iron; pH; sewage sludge
Abstract:
... This study investigated the fate of extracellular polymeric substances (EPS) of anaerobically digested saline sewage sludge during its preconditioning. Sludge was conditioned with Acidithiobacillus ferrooxidans (AF) culture for 24h in the presence and absence of Fe2+ as an energy substrate. pH decreased from 7.24 to 3.12 during sludge conditioning process. The capillary suction time (CST) of condi ...
DOI:
10.1016/j.biortech.2016.03.081

10. Microbial biodegradation of proteinaceous tannery solid waste and production of a novel value added product – Metalloprotease

Author:
Ravindran, Balasubramani,   et al.   ; Wong, Jonathan W.C.; Selvam, Ammaiyappan; Thirunavukarasu, Kathirvel; Sekaran, Ganesan;     Show all 5 Authors
Source:
Bioresource technology 2016 v.217 pp. 150-156
ISSN:
0960-8524
Subject:
Clostridium limosum; animals; biodegradation; enzyme activity; fermentation; hydrolysis; industrial applications; magnesium; metalloproteinases; molecular weight; response surface methodology; scanning electron microscopy; solid wastes; tanneries; value-added products; zinc
Abstract:
... In this study, animal fleshing (ANFL) was utilized as a substrate for the production of extracellular protease by Clostridium limosum through central composite rotatable design (CCRD) and response surface methodology (RSM). Optimum protease production of 433U/ml was achieved and the purified enzyme was identified as acidic metalloprotease, a monomeric protein. The molecular weight of the enzyme wa ...
DOI:
10.1016/j.biortech.2016.03.033

11. Microalgae Potential and Multiple Roles—Current Progress and Future Prospects—An Overview

Author:
Ravindran, Balasubramani,   et al.   ; Gupta, Sanjay Kumar; Cho, Won-Mo; Kim, Jung Kon; Lee, Sang Ryong; Jeong, Kwang-Hwa; Lee, Dong Jun; Choi, Hee-Chul;     Show all 8 Authors
Source:
Sustainability 2016 v.8 no.12
ISSN:
2071-1050
Subject:
biodiesel; biomass production; biorefining; coagulants; electrochemistry; energy efficiency; fuel production; harvesting; industrial effluents; lipids; microalgae; value-added products; wastewater
Abstract:
... Substantial progress has been made in algal technologies in past few decades. Initially, microalgae drew the attention of the scientific community as a renewable source of biofuels due to its high productivity over a short period of time and potential of significant lipid accumulation. As of now, a technological upsurge has elaborated its scope in phycoremediation of both organic and inorganic pol ...
DOI:
10.3390/su8121215

12. Enhanced dewaterability of anaerobically digested sewage sludge using Acidithiobacillus ferrooxidans culture as sludge conditioner

Author:
Ravindran, Balasubramani,   et al.   ; Murugesan, Kumarasamy; Selvam, Ammaiyappan; Kurade, Mayur B.; Yu, Shuk-Man; Wong, Jonathan W.C.;     Show all 6 Authors
Source:
Bioresource technology 2014 v.169 pp. 374-379
ISSN:
0960-8524
Subject:
Acidithiobacillus ferrooxidans; Fourier transform infrared spectroscopy; X-ray diffraction; bacteria; cell free system; culture filtrates; filtration; iron; minerals; sewage sludge
Abstract:
... Role of Acidithiobacillus ferrooxidans culture in bioacidification and dewaterability of anaerobically digested sewage sludge (ADS) was investigated. A. ferrooxidans culture grown in 9K medium along with Fe2+ produced iron flocculant containing, secondary iron minerals and biopolymeric substances as confirmed by FT-IR, XRD, and SEM-EDX. Bioacidification of ADS was performed using 10% (v/v) A. ferr ...
DOI:
10.1016/j.biortech.2014.06.057