Wastewater as a Source of Energy, Nutrients, and Service Water

Cornel, Peter; Meda, Alessandro; Bieker, Susanne

doi:10.1016/b978-0-444-53199-5.00092-0

Cited by 19 publications

(9 citation statements)

References 28 publications

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“…Hence, this research pioneers in demonstrating PNSB production in a raceway reactor without strict anaerobic conditions, thereby setting a precedent for future research. Lu, et al 2019 32 have also claimed to produce PNSB in a PBR at DO concentrations between 0.2-0.5 mg O 2 L - 1 , yet have not presented results of the microbial community composition.…”

Section: Resultsmentioning

confidence: 99%

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Control tools to selectively produce purple bacteria for microbial protein in raceway reactors

Alloul

Cerruti

Adamczyk

et al. 2020

Preprint

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Section: Resultsmentioning

confidence: 99%

“…Globally, only 4% of nitrogen and 17% of phosphorus fertilizers applied to the land, are eventually consumed. 1,2 These inefficiencies in the fertilizer-food chain severely distort the carrying capacity of the Earth, surpassing the planetary boundaries (i.e. safe operating space for sustainability) beyond the zone of uncertainty.…”

Section: Introductionmentioning

confidence: 99%

Control tools to selectively produce purple bacteria for microbial protein in raceway reactors

Alloul

Cerruti

Adamczyk

et al. 2020

Preprint

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“…Final sludge decomposition takes place via combustion in grate or fluidal furnance [Cornel 2011 Depending on the chemical composition of wastewater, as well as the technical solutions employed in its treatment, the sludge with different content of micro-and macroelements, including heavy metals, is obtained. Additionally, the physical characteristics of sewage sludge are linked with the technology used [machines and installations] and the method of conducting the removal process.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Variability of the Composition of Sewage Sludge Before and After Drying Treatment – SEM Studies

Kiper¹,

Głowacka²,

Rucińska³

2019

J. Ecol. Eng.

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The aim of the study was to determine the physical and chemical properties of the sewage sludge from "Pomorzany" and "Zdroje" municipal wastewater treatment plants located in Szczecin, Poland. The paper presents the outcomes of SEM observation of dried and stabilized sewage sludge. The research on the obtained materials was conducted using reference methods; the images from a scanning electron microscope were used. The amount of sewage sludge produced with the methods of its management was presented. The technology of sludge management is based on its dehydration up to dry weight content of roughly 20% and then drying in contact dryers up to 90-92% dry weight, separately in both plants. Dried sewage sludge is subsequently burned in mechanical grid boilers at "Pomorzany" WWTP. The analyzed materials were characterized by the pH of 7.90-8.42, dry mass and average organic matter content were 18.949% and 68.903%, respectively. The elements identified in the largest amount on the surface of analyzed materials included calcium, iron, phosphorus, sulphur and silicon. The amount of phosphorus ranging from 1.82 to 3.44% indicates the possibility of using sewage sludge as organic fertilizer product or an alternative source of phosphorus.

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“…To balance organics harvesting and effluent quality, high-rate MBR or high-loaded (HL) MBR (HL-MBR) was used. Akanyeti et al [8] evaluated the feasibility of HL-MBR for organics recovery and found that 35% of chemical oxygen demand (COD) in the wastewater at an SRT of one day was recovered as methane, which was considerably higher than the typical values of around 25% in CAS systems [9,10]. Hernández et al [11] applied HL-MBR to concentrate the COD of grey water and indicated a strong bioflocculation performance at short SRTs, suggesting that bioflocculation of HL-MBR is a promising grey water pretreatment step for energy recovery within decentralized sanitation processes.…”

Section: Introductionmentioning

confidence: 99%

High-Rate Contact Stabilization Process-Coupled Membrane Bioreactor for Maximal Recovery of Organics from Municipal Wastewater

Dai

Xü

Yang

2018

Water

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The high-rate activated sludge (HRAS) process is being studied for the removal and recovery of organics with short solids retention time (SRT) from wastewater, facilitating energy recovery by the subsequent anaerobic digestion process. In the present study, the feasibility of a novel high-rate contact stabilization (HRCS) process coupled with a membrane bioreactor (MBR) was investigated as a HRAS technique to harvest organics compared to a high-loaded MBR (HL-MBR) process treating the same sewage. Results showed that higher chemical oxygen demand (COD) removal efficiency and better bioflocculation performance were obtained using HRCS-MBR compared with HL-MBR with SRTs from 0.5 to 1.8 days. The increased bound extracellular polymeric substances content in the contactor was responsible for the improved biosorption and bioflocculation performance in the HRCS-MBR configuration. At an optimal SRT of 1.2 days, incoming organics of 47.5% and 40.5% were harvested in concentrate for HRCS-MBR and HL-MBR. These harvested organics from the concentrate per liter from HRCS-MBR and HL-MBR produced 4.28 × 10 −3 and 3.72 × 10 −3 kWh of electricity, respectively. The clear advantage of fouling control for HRCS-MBR was determined because of significantly lower concentrations of colloidal materials and soluble microbial products in the concentrate compared with HL-MBR. Therefore, HRCS-MBR holds promise for organics recovery and sustainable wastewater treatment.

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Wastewater as a Source of Energy, Nutrients, and Service Water

Cited by 19 publications

References 28 publications

Control tools to selectively produce purple bacteria for microbial protein in raceway reactors

Control tools to selectively produce purple bacteria for microbial protein in raceway reactors

Analysis of the Variability of the Composition of Sewage Sludge Before and After Drying Treatment – SEM Studies

High-Rate Contact Stabilization Process-Coupled Membrane Bioreactor for Maximal Recovery of Organics from Municipal Wastewater

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