Figure 2 - uploaded by Kiran Kumar Panga
Content may be subject to copyright.
Source publication
one of the most promising alternative fuel sources for satisfying future energy demands.
CD3urrent research on H2 production is being conducted onD4 carbohydrate-rich wastewater which
has theD5 ability to D6produce renewable energy outputs like hydrogen. Dairy wastewater is one
such carbohydrate-rich high-D7volume industrial wastewater which is D8s...
Context in source publication
Similar publications
Biohydrogen production from industrial wastewater has been a focus of interest in recent years. The in depth knowledge in lab scale parameters and emerging strategies are needed to be investigated in order to implement the biohydrogen production process at large scale. The operating parameters have great influence on biohydrogen productivity. With...
Citations
... In some studies using mixed bacteria, thermal pretreatment was applied to activated sludge mixture at 105 • C for 30 min [18], to anaerobic sludge at 105 • C for 30 min [19], to landfill leachate sludge at 65 • C for 30 min [20], and to sludge from a food and paper waste compost source at 80 • C for 30 min [21]. Studies conducted in this context have reported that the following conditions support hydrogen production: in a study where dairy product wastewater was used, the optimum temperature, pH, and hydraulic residence time (HRT) were 55 • C, 6.5, and 6 h, respectively [22]; in a study where brewery effluent was used, the optimum pH, temperature, and HRT were 6.5, 55 • C, and 18 h [23], respectively; in a batch study using coconut milk wastewater, an initial pH value of 6.5 and 35 ± 2 • C were used [24]; in a batch study using slaughterhouse sludge and vegetal wastewater, a pH value of 6.5 and 50 • C were used [25]; in a batch study where mozzarella cheese and pecorino cheese wastewater was examined, a pH value in the range of 6.5-7.5 and 39 ± 1 • C were used [18]; in a batch study using glucose, fructose, sucrose, and xylose, 37 • C and an initial pH value of 5.5 were used [26]; in a study examining lactate wastewater originating from the food processing industry, 45 • C and a pH value of 7.5 were used [19]; in a batch study examining dairy product wastewater, an initial pH of 6 and Bioengineering 2024, 11, 282 3 of 19 37 • C were used [20]; and, finally, in a batch study examining citrus processing industry wastewater, 37 • C and a pH value of 5.5 were sued [27]. ...
Hydrogen creates water during combustion. Therefore, it is expected to be the most promising environmentally friendly energy alternative in the coming years. This study used extract liquid obtained from the waste nigella sativa generated by the black cumin oil industry. The performance of biological hydrogen manufacturing via dark fermentation was investigated in the fluidized bed reactor (FBR) and completely stirred tank reactor (CSTR) under the operation conditions of pH 5.0, 4.0, and 6.0 and a hydraulic retention time (HRT) of 36 and 24 h. The performance of hydrogen manufacturing was determined to be good under an organic loading ratio (OLR) of 6.66 g.nigella sativa extract/L and pH 4.0. According to these conditions, the maximum amount of hydrogen in CSTR and FBR was found to be 20.8 and 7.6 mL H 2 /day, respectively. The operating process of the reactors displayed that a reduction in HRT augmented biohydrogen manufacturing. The work that used mixed culture found that the dominant microbial population at pH 4.0 involved Hydrogenimonas thermophila, Sulfurospirillum carboxydovorans, Sulfurospirillum cavolei, Sulfurospirillum alkalitolerans, and Thiofractor thiocaminus. No research on waste black cumin extract was found in biohydrogen studies, and it was determined that this substrate source is applicable for biological hydrogen manufacturing.
... Waste nutrients can be treated in ways to recover energy after biochemical characterization and screening. VW's COD levels are usually high, while protein, carbohydrates, and lipid biomolecules are abundant at pH levels that differ greatly [3][4][5][6][7]. It also has a high BOD and is rich in nutrients [8]. ...
The application of biological pre-hydrolysis has become one of the predominant pre-treatment in anaerobic digestion (AD) to enhance biogas production from the Lignocellulosic and cellulosic fiber that contains agro waste such as uncooked vegetable waste. Effective management of this market waste may reduce environmental pollution. With the help of suitable pre-treatment process, the biogas generation can be effectively improved. This study aims to determine the optimum biological pre-hydrolysis (BPH) time for Market Yard Vegetable Waste (MYVW) and its impact on the biochemical biogas potential on the laboratory scale and pilot scale at ambient temperature conditions. The AD was run in a conventional mode for 300 days (without BPH), followed by a further 120 days operated with BPH-pretreated MYVW with the same 18-h BPH duration. A comparison was also made between the biogas production of MYVW’s pilot-scale biogas plant and the lab-scale BGP test. A comprehensive analysis of the biochemical process stability and performance of biogas production was performed by comparing VSLR and OLR, as well as other parameters in both phases with the feeding pattern. The novelty of this study indicates an enhancement of biogas production. A conventional AD process (without BPH) produced an average of 0.59 L-biogas/day/g VS fed. With BPH-pretreated MYVW, biogas production averaged 0.69 L-biogas/day/g VS fed. As a result, the AD process using BPH produces 16.94 ± 1.0% more biogas than the conventional AD process in terms of L-biogas/day/g VS fed.
... Dairy wastewater was utilized for biohydrogen production. Maximum HY of 71% was attained after 6 h HRT and maximum 71% of COD removal was observed at 24 h HRT (Kirankumar et al. 2017). Molasses based food wastewater converted into hydrogen under various experimental conditions. ...
Fast depleting fossil fuel and its associated negative impacts on environment and climate change raising concern over clean fuel and sustainability. Thus, in line scientific community are thinking to have alternative fuels like hydrogen, natural gas, syngas, and biofuels. Furthermore, hydrogen gas is superior among alternative fuels due to its renewable nature, zero emissions, and generate large content of energy during combustion. Researcher cites on various biological methods like bio photolysis of water, dark fermentation, photo-fermentation, and microbial electrolysis cell. However, biohydrogen production from wastewater as substrate is becoming popular due to less energy intensive and sustainable way to fulfil the future energy demands. With rapid increase in industrialization and urbanization will further increase wastewater generation globally. Hence, wastewaters could have huge potential for the green hydrogen production which ultimately provides clean energy, and the low-cost wastewater treatment. Literature reveals that wastewater from various industries like citric acid, cheese whey, paper mill, rice mill, beverage, cassava starch processing, palm oil, starch processing, pharmaceutical, food processing , distillery, and sugar industry have been utilized for biohydrogen production. Hence, the present review is focused on various wastewaters based green hydrogen production which have overall positive impacts on social, economic, and environment for the future generation.
... Biohydrogen is an alternative energy source, various biological routes are there for 2 production including biophotolysis, photo fermentation, dark fermentation process, or a combination of these processes [28]. To explore the historical and present growth of publications of biohydrogen a number of authors have mainly been interested in analysis of growth in the las years, Tsay [16] examined that the literature of hydrogen energy may be fitted relatively well by an exponential fit as Y= 482+12e0.176(x-1965), ...
There is a great interest in biofuels production as an alternative and potentially renewable fuel. This study analyzed the rate of scientific publications related to the biofuels such as biodiesel, bioethanol, biogas, biohydrogen and wood pellets using the Logistic and Gompertz models to quantitatively describe the publications growth. The models showed fit to the biofuels growth data as indicated by the determination coefficient. China was the most productive country with publications of biohydrogen, bioethanol, biodiesel and biogas. Overall, research on the topic of biofuels, biohydrogen and bioethanol are increasing with a rate of publications greater than 0.26 years-1. From 2003 there was growth in the rate of publications of each biofuel evaluated in this work.
Keywords:
Biofuels, Gompertz-model, bioethanol, biodiesel, biohydrogen, pellets, biogas, logistic-model
... In this energy conversion process labeled as "future fuel," hydrogen is utilized releasing only water as the output. Hydrogen can be generated from organically-rich wastewater including from olive mill, distillery, molasses, dairy, beverage, pharmaceutical, textile processing, and food processing facilities [91,92]. ...
Since the Industrial Revolution, the increase in global average temperature to about 1.5 °C brings sustainable bioenergy into action. This not only highlighted the limited and mortal nature of fossil raw material but also enforces the immediate biological products switch. The processes involved to attain a higher growth level coupling with achieving net zero emission is the supreme concern in the coming decades. The challenge is to showcase premodern to current bio-based economy conversion. This can be done by highlighting the economy and ameliorating process strategies of dominant regions of the globe. The relationship between carbon sequestration and emission, biofuel, and biorefineries as the priority of bioeconomy and CO 2 as a repulsive feedstock for biocatalysis is discussed. We emphasize the main agenda of bioeconomy to simply bypass the use of fossil raw material by recruiting bio-based products/processes. The agenda has a certain potential to upgrade the economic bar by simply adding values to the yield.
... Therefore, the concentration of contaminants in this waste may be much higher than in wastewater incoming into WWTPs. For instance, Östman et al. (2017) reported approximately five times higher concentrations of antibiotics, quaternary ammonium compounds (QAC), and Tezel et al., 2011 ;Sakaveli et al., 2021Wilén et al., 2003Tezel et al., 2011 ;Kadir et al., 2017 ;Fang et al., 2019 ;Liu et al., 2019a Zorpas andLoizidou, 2009 ;Li et al., 2013b ;Wiechmann et al., 2013 ;Kirankumar et al., 2016 ;Li et al., 2017 ;Sakaveli et al., 2021 Abbreviations: n.d.a -no data available; MLSS -mixed liquor suspended solids; TS -total solids. ...
Being an inevitable by-product of the operation of wastewater treatment plants (WWTPs), sewage sludge may cause serious environmental problems. Thus, the proper treatment and management of such waste is currently a challenge of great importance. Due to the significant concentration of various contaminants, the direct application of sewage sludge in agriculture is often limited. Nevertheless, this waste is rich in valuable compounds, among which humic substances (HS) are recognized to be one of the most important. A plethora of studies have shown the extensive application potential of HS. However, literature data also evidenced that HS may constitute obstacles for efficient wastewater treatment and sewage sludge management. The current review article discusses the fate of HS in WWTPs. Moreover, the necessity of removing and recovering such compounds from wastewater treatment systems was highlighted. Attention was also drawn to the beneficial features of humic compounds and avenues for their various possible applications.
... The two simple ways for land discarding are namely, dumping and landfilling. Dumping is a technique, where the wastes are tipped, releasing a foul odor [17]. In general, garbage is dumped in the rural areas of developing countries. ...
Any material when utilized for a required period of time and segment, the leftover residues of those materials are known as waste. Enormous waste is generated during such wear and tear process of materials depending on the usage and functions in a routine lifestyle. Those generated waste when overloaded beyond the capacity of natural recycling processes, would influence the environment and human health. Hence, the waste generated from used materials should be managed according to the environmental impact. Even though wastes are also sometimes rich in organic compounds, nutrients, and energy resources, they are not experimented and managed appropriately. Recently, different feasible techniques are invented and followed to recover and reuse the efficient resources that can create and support sustainable livelihood by creating green economy effects by reducing waste. In this chapter, the emphasis has been given to providing an overview of recent advancements on bio-based waste management and product recoveries such as microbes mediated approaches, biorefineries for waste valorization, and bioenergy from industrial waste.
... As a part of diminishing water pollution, treatment of industrial wastewater prior to disposal plays a paramount role (Pinto et al. 2018). There are many thermal, physical, chemical and biological conventional processes in existence for the treatment of industrial wastewater (Panga et al. 2018;Kiran et al. 2017). But due to the typical characteristics of pesticide intermediate industrial waste water such as high COD, high total suspended solids (TSS), highly acidic nature and presence of highly recalcitrant organic compounds (Wang et al. 2004;Saranga et al. 2020), many treatment methods such as coagulation-sedimentation, adsorption and biological processes proven to be inefficient in treating this waste water, because of less removal, high operational costs, large quantities of sludge production and generation of secondary pollutants. ...
Now-a-days industrial wastewater treatment has been a major preventive step against the pollution of natural water resources. This wastewater contains different type of contaminants and it needs prior treatment for its discharge in to water body. This study deals with the treatment of pesticide intermediate industrial wastewaters using individual treatment processes such as fenton, photo-fenton, electro-oxidation, rotavapor distillation, and coagulation. Optimization of operational parameters such as reaction time and fenton reagent dosages in fenton process, coagulant dosage in coagulation, inter-electrode distance, reaction time and pH in electro-oxidation process had been carried out in this study for the optimal reduction of chemical oxygen demand (COD). Using optimised dosages of fenton reagents FeSO4.7H2O of 0.1 g/l, H2O2 of 1.75 g/l for 250 ml of sample (i.e. Fe⁺²/H2O2 = 0.050) in the fenton treatment of pesticide intermediate industrial wastewater an optimum COD. Removal of 51.1% was obtained at a reaction time of 180 min and at a pH of 3. Where as in photo-fenton process, an optimum COD removal of 53.33% was obtained at a reaction time of 180 min. Using rotavapor distillation, highest percentage removal of COD (62.22%) was obtained at a distillation temperature of 100 ℃.
Graphic abstract
... In this energy conversion process labeled as "future fuel," hydrogen is utilized releasing only water as the output. Hydrogen can be generated from organically-rich wastewater including from olive mill, distillery, molasses, dairy, beverage, pharmaceutical, textile processing, and food processing facilities [91,92]. ...
Ever-growing human population, their need for food, energy and water along with various deadly pollutants are the major threat to the mankind. Hence, there is a need to develop sustainable technologies to provide constant supply of food and energy to enable a circular economy. Wastes in developing countries, if properly managed, can be potential source of energy, recycled materials and revenue. For waste treatment, technologies such as fermentation, anaerobic digestion (AD), pyrolysis, incineration, and gasification can be used. However, selection of the right technology and proper process will depend on the type of waste, it’s generation and the desired economy of scale. Hence there is a need to develop an integrated biorefinery approach so that the waste can be treated to recover energy, produce various value-added products and reduce greenhouse gases for a sustainable environment. Global availability of freshwater is reducing alarmingly. Majority of the freshwater is used for human consumption and, to a great extent, for industry and agriculture. However, all such anthropogenic activities lead to the generation of wastewater in large quantities that need to be recycled effectively to reduce dependence on freshwater. Biorefineries based on wastewater can play a great role as has been recorded in different parts of the world. This will generate closing the gap in water cycle, recovery of energy and valuable biochemicals, new business opportunities, reduction in greenhouse gases, saving natural resources which eventually will lead to development of a sustainable industrial ecosystem and establishment of a circular bioeconomy.
... Hence, the replacement of fossil fuel by economical and environmental friendly processes has been shown a great interest. Hydrogen (H 2 ) and methane (CH 4 ) are considered as vital future energy sources as they are capable of higher conversion efficiency with low pollutants and widely used in many industries [3,4]. Out of the fossil fuels, H 2 is one of the most clean and green fuel as it results into zero carbon emission along with high energy content of 143 KJ/g. ...
... Out of the fossil fuels, H 2 is one of the most clean and green fuel as it results into zero carbon emission along with high energy content of 143 KJ/g. CH 4 is considered as the second most efficient fuel with energy content of 55 KJ/gas. CH 4 is the major source for clean transportation fuel as it emits lower CO 2 and has high calorific value [5,6]. ...
Rapid development of the industrial and domestic sectors has led to the rise of several energy and environmental issues. In accordance with sustainable development and waste minimization issues, biohydrogen production along with biomethane production via two-stage fermentation process using microorganisms from renewable sources has received considerable attention. In the present study, biohythane production with simultaneous wastewater treatment was studied in a two-stage (Biohydrogen and Biomethane) fermentation process under anaerobic conditions. Optimization of high organic content (COD) distillery spent wash effluent (DSPW) with dilution using sewage wastewater was carried out. Addition of leachate as a nutrient source was also studied for effective biohythane production. The experimental results showed that the maximum biohythane production at optimized concentration (substrate concentration of 60 g/L with 30% of leachate as a nutrient source) was 67 mmol/L bio-H2 and with bio-CH4 production of 42 mmol/L.
Graphical Abstract
