Energy Recovery from Wastewater Treatment Plant

Nouri, J.; Jafarinia, M.; Naddafi, Kazem; Nabizadeh, Ramin; Mahvi, A H; Nouri, Nayereh

doi:10.3923/pjbs.2006.3.6

Cited by 16 publications

(4 citation statements)

References 6 publications

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“…During Nanofiltration and Reverse Osmosis processes, rejection percent was closely similar for TDS and EC parameters. In hybrid process, also, it was similar which declare that TDS and EC parameters are related to each other closely, as pointed out in a book entitled “Standard Methods for the Examination of Water and Wastewater, 2012” [29, 30]. Meanwhile, Salinity rejection percent was shown to be similar to TDS rejection percent, to some extent, which represents a direct relationship between salinity and TDS.…”

Section: Discussionmentioning

confidence: 66%

An investigation of desalination by nanofiltration, reverse osmosis and integrated (hybrid NF/RO) membranes employed in brackish water treatment

Talaeipour

Nouri

Hassani

et al. 2017

J Environ Health Sci Engineer

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BackgroundAs an appropriate tool, membrane process is used for desalination of brackish water, in the production of drinking water. The present study aims to investigate desalination processes of brackish water of Qom Province in Iran.MethodsThis study was carried out at the central laboratory of Water and Wastewater Company of the studied area. To this aim, membrane processes, including nanofiltration (NF) and reverse osmosis (RO), separately and also their hybrid process were applied. Moreover, water physical and chemical parameters, including salinity, total dissolved solids (TDS), electric conductivity (EC), Na+1 and Cl−1 were also measured. Afterward, the rejection percent of each parameter was investigated and compared using nanofiltration and reverse osmosis separately and also by their hybrid process. The treatment process was performed by Luna domestic desalination device, which its membrane was replaced by two NF90 and TW30 membranes for nanofiltration and reverse osmosis processes, respectively. All collected brackish water samples were fed through membranes NF90-2540, TW30-1821-100(RO) and Hybrid (NF/RO) which were installed on desalination household scale pilot (Luna water 100GPD). Then, to study the effects of pressure on permeable quality of membranes, the simulation software model ROSA was applied.ResultsResults showed that percent of the salinity rejection was recorded as 50.21%; 72.82 and 78.56% in NF, RO and hybrid processes, respectively. During the study, in order to simulate the performance of nanofiltartion, reverse osmosis and hybrid by pressure drive, reverse osmosis system analysis (ROSA) model was applied. The experiments were conducted at performance three methods of desalination to remove physic-chemical parameters as percentage of rejections in the pilot plant are: in the NF system the salinity 50.21, TDS 43.41, EC 43.62, Cl 21.1, Na 36.15, and in the RO membrane the salinity 72.02, TDS 60.26, EC 60.33, Cl 43.08, Na 54.41. Also in case of the rejection in hybrid system of those parameters and ions included salinity 78.65, TDS 76.52, EC 76.42, Cl 63.95, and Na 70.91.ConclusionsComparing rejection percent in three above-mentioned methods, it could be concluded that, in reverse osmosis process, ions and non-ion parameters rejection ability were rather better than nanofiltration process, and also better in hybrid compared to reverse osmosis process.The results reported in this paper indicate that the integration of membrane nanofiltration with reverse osmosis (hybrid NF/RO) can be completed by each other probably to remove salinity, TDS, EC, Cl, and Na.

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Section: Discussionmentioning

confidence: 66%

An investigation of desalination by nanofiltration, reverse osmosis and integrated (hybrid NF/RO) membranes employed in brackish water treatment

Talaeipour

Nouri

Hassani

et al. 2017

J Environ Health Sci Engineer

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“…Novel control systems, such as AVN and ABAC, proved the possibility of significant reduction of energy for aeration reduction by keeping the blowers off more than 25% of the time while maintaining the same wastewater effluent standards. Furthermore, technological upgrades Nouri et al (2006) including the new pathways of nitrogen removal were able to reduce the required aeration energy by more than 60%. The second step towards energy neutrality of WWTPs would be increasing the on-site energy production.…”

Section: Discussionmentioning

confidence: 99%

Achieving energy neutrality in wastewater treatment plants through energy savings and enhancing renewable energy production

Maktabifard

Zaborowska

Mąkinia

2018

Rev Environ Sci Biotechnol

204

106

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Wastewater treatment plants (WWTPs) consume high amounts of energy which is mostly purchased from the grid. During the past years, many ongoing measures have taken place to analyze the possible solutions for both reducing the energy consumption and increasing the renewable energy production in the plants. This review contains all possible aspects which may assist to move towards energy neutrality in WWTPs. The sources of energy in wastewater were introduced and different indicators to express the energy consumption were discussed with examples of the operating WWTPs worldwide. Furthermore, the pathways for energy consumption reductions were reviewed including the operational strategies and the novel technological upgrades of the wastewater treatment processes. Then the methods of recovering the potential energy hidden in wastewater were described along with application of renewable energies in WWTPs. The available assessment methods, which may help in analyzing and comparing WWTPs in terms of energy and greenhouse gas emissions were introduced. Eventually, successful case studies on energy self-sufficiency of WWTPs were listed and the innovative projects in this area were presented.

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“…The general electrical efficiency of biogas engine is only 35%, which can be increased to about 80-90% by setting up new CHP of more than 40% electric efficiency (Frijns et al, 2013) Generated electricity from biogas can be utilized to meet up the required electricity of the WWTP, so dependence on the external power system can be reduced. It has been observed that onsite energy requirement of WWTP has been met up through the generation of energy by CHP in Austria (Wett et al, 2007) and Iran (Nouri et al, 2006).…”

Section: Energy Generation By Biogasmentioning

confidence: 99%

Prospects of Using Wastewater as a Resource-Nutrient Recovery and Energy Generation

Ahmed¹,

Hasan²,

Rahman³

et al. 2015

American Journal of Environmental Sciences

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Energy Recovery from Wastewater Treatment Plant

Cited by 16 publications

References 6 publications

An investigation of desalination by nanofiltration, reverse osmosis and integrated (hybrid NF/RO) membranes employed in brackish water treatment

An investigation of desalination by nanofiltration, reverse osmosis and integrated (hybrid NF/RO) membranes employed in brackish water treatment

Achieving energy neutrality in wastewater treatment plants through energy savings and enhancing renewable energy production

Prospects of Using Wastewater as a Resource-Nutrient Recovery and Energy Generation

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