Energy recovery from wastewaters with high-rate anaerobic digesters

Tauseef, S. M.; Abbasi, S. A.

doi:10.1016/j.rser.2012.11.056

Cited by 152 publications

(53 citation statements)

References 308 publications

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“…Further advantages, possibly improving demand-driven gas production and thereby enhancing the scale of exibility compared to single-stage AD, are that the hydrolysis as rate limiting step ) is decoupled from methanogenesis, thereby enabling a shift of the gas production into times of higher demand, selective production of certain intermediates in the AR by controlling pH and redoxpotential , generally higher process stability and ruggedness against shock loads , operation of the MR at much higher OLRs than CSTRs and the possibility to keep the MR in dormancy (Tauseef et al, 2013).…”

Section: Two-staged Anaerobic Digestionmentioning

confidence: 99%

Demand-driven biogas production in anaerobic filters

Lemmer

Krümpel

2017

Applied Energy

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Section: Two-staged Anaerobic Digestionmentioning

confidence: 99%

Demand-driven biogas production in anaerobic filters

Lemmer

Krümpel

2017

Applied Energy

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“…For example, the amino acids from protein degradation contain a carboxylic group (acid) and an amine group (base) which are able to buffer the pH to near 5 (Fennema et al, 2010). According to Tauseef et al (2013), the recommended alkalinity for biomethanation is between 2,500 and 4,500 mg CaCO3.L -1 .…”

Section: Fermentation Of the Synthetic Effluentmentioning

confidence: 99%

Effect of Organic Load and Alkalinity on Dairy Wastewater Biomethanation

et al. 2017

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This study aimed to evaluate the effect of variations in organic load (hydraulic retention times -HRTs: from 2 to 0.5 day) and in alkalinity (NaHCO3 from 4,000 to 1,000 mg.L -1 ) on methane production. Biomass of sewage sludge was inoculated and stabilized on 1" polypropylene rings. The rings were immersed in the liquid phase (8.41 L) of an upflow anaerobic filter reactor (12.22 L). A solution of 5 g of whole milk powder per liter was used to simulate effluent from the dairy industry. Process effectiveness was measured by chemical oxygen demand reduction, biogas production, and biogas methane content. Biogas production started at a 2-day HRT and synthetic effluent alkalinization with 4,000 mg.L -1 NaHCO3. The best operation condition was at 1-day HRT and with the addition of 4,000 mg.L -1 NaHCO3. Biogas production reached 1.5 NL of biogas per L of reactor liquid phase, with 68% of methane and a concomitant reduction in COD of 57%.

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“…In terms of sludge production, for most wastewaters, the net sludge yield from aerobic activated sludge treatment is of the order of 0.5 kg of volatile suspended solid (VSS) per kg COD removed as opposed to less than 0.1 kg VSS per kg COD removed sludge yield from anaerobic treatment [1]. If the two systems are combined, anaerobic and aerobic processes can generate lesser amounts of sludge and the overall cost of waste treatment can be considerably reduced.…”

Section: Combined Anaerobic-aerobic Treatment Systemmentioning

confidence: 99%

Water Sustainability: Emerging Trends for Water Quality Management

Riadi

2017

KLS

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Water sustainability needs an integrated approach to meet the water need of the present without compromising the ability of future generations to meet their own need of water. It includes water security and water scarcity. The water demand is increasing every year, while the planet's capacity to sustain increasing demands for water is challenged. The main global water problems fall into three categories. The first is too much of it, secondly is too little of it and thirdly, it is too dirty. The first category is due to extensive flooding, the second category is due to serious drought and the third category is due to pollution and misuse of water which needs water quality management. Nowadays, there are 1.2 × 10 9 people live in areas of water scarcity and 2.6 billion people in global are lacking safe water supply. There are (6 to 8) × 10 6 humans being are killed each year from water-related disasters and disease.In Indonesia, there is about 37 × 10 6 people lack access to safe water due to water quality issue. In this paper, emerging trends in water quality management to support water sustainability and the water-energy nexus will be discussed.Keywords: water quality; water sustainability; water management. Water SustainabilityWe all understand that everyone needs water, though not everyone thoroughly understand the issue of water sustainability. What is water sustainability? It involves in people participating which talking about communication and dialogue, political process and also operated between science and society which needs creatively, holistically and broadly thought. It is an integrated approach to meet the water needs of the present without compromising the ability of future generations to meet their own need of water. Water sustainability includes water security and water scarcity. There are (6 to 8) × 10 6 humans being killed each year from water-related disasters and disease.The demand and scarcity of water is greater every year which can be seen in Fig. 1 and Fig. 2. In Fig. 1, it is clear that the demand of water will increase up to 60 % by 2050. The planet's capacity to sustain increasing demands for water is questioned.Failure in governance and development has generated tremendous pressure on water resources affecting water quality and availability. About 1.2 × 10 9 people live in areasHow to cite this article:

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Energy recovery from wastewaters with high-rate anaerobic digesters

Cited by 152 publications

References 308 publications

Demand-driven biogas production in anaerobic filters

Demand-driven biogas production in anaerobic filters

Effect of Organic Load and Alkalinity on Dairy Wastewater Biomethanation

Water Sustainability: Emerging Trends for Water Quality Management

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