Resource recovery from an aerobic granular sludge process treating domestic wastewater

Karakas, Inci; Sam, Stanley Bortse; Çetin, Ender; Dülekgürgen, Ebru; Yılmaz, Gülsüm

doi:10.1016/j.jwpe.2020.101148

Cited by 51 publications

(16 citation statements)

References 34 publications

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“…The differences in the availability and activity of the microorganisms indicate that there is a higher probability that the same raw materials and techniques used to produce the WRW may not produce common species as the ones isolated in this study. [76][77][78][79][80][81][82][83][84]. The fermented WRW nutrient concentrations are generally within the range of the reported values obtained in the domestic and municipal wastewater and palm oil mill effluent (POME).…”

Section: Identification and Characterization Of The Bacterial Strainssupporting

confidence: 73%

Chemical and Microbial Characterization of Washed Rice Water Waste to Assess Its Potential as Plant Fertilizer and for Increasing Soil Health

et al. 2021

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The wastewater from washed rice water (WRW) is often recommended as a source of plant nutrients in most Asian countries, even though most current research on WRW lack scientific rigor, particularly on the effects of rice washing intensity, volumetric water-to-rice ratio (W:R), and condition of the WRW before plant application. This research was thus carried out: (1) to determine how various rice washing intensities, fermentation periods (FP), and W:R would affect the nutrient content in WRW, and (2) to isolate, identify, and characterize the bacterial community from fermented WRW. The WRW was prepared at several rice washing intensities (50, 80, and 100 rpm), FP (0, 3, 6, and 9 days), and W:R (1:1, 3:1, and 6:1). The concentrations of all elements (except P, Mg, and Zn) and available N forms increased with increasing FP and W:R. Beneficial N-fixing and P- and K-solubilizing bacteria were additionally detected in WRW, which helped to increase the concentrations of these elements. Monovalent nutrients NH4+-N, NO3−-N, and K are soluble in water. Thus, they were easily leached out of the rice grains and why their concentrations increased with W:R. The bacteria population in WRW increased until 3 days of fermentation, then declined, possibly because there was an insufficient C content in WRW to be a source of energy for bacteria to support their prolonged growth. While C levels in WRW declined over time, total N levels increased then decreased after 3 days, where the latter was most possibly due to the denitrification and ammonification process, which had led to the increase in NH4+-N and NO3−-N. The optimum FP and W:R for high nutrient concentrations and bacterial population were found to be 3 to 9 days and 3:1 to 6:1, respectively. WRW contained nutrients and beneficial bacterial species to support plant growth.

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Section: Identification and Characterization Of The Bacterial Strainssupporting

confidence: 73%

Chemical and Microbial Characterization of Washed Rice Water Waste to Assess Its Potential as Plant Fertilizer and for Increasing Soil Health

et al. 2021

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“…For example, LTCM of EPS using cation exchange resin sensors could enhance resource recovery and water reuse in a zero-waste discharge aerobic granular sludge reactor by controlling the organic loading rate. 104 Furthermore, using electrochemical sensors as the LTCM and LTDM devices to quantify nitrogen and DO can accurately profile the water quality variations and reaction kinetics in BNR reactors such as photosequencing batch reactors 105 and integrated vertical membrane bioreactors. 106 However, the main challenge for long-term monitoring in WW is the rapid deterioration of sensor performance, 107 while continuous monitoring is impaired by numerous interference factors in complex WW mediums (e.g., high biomass content, vigorous mixing, and pH fluctuation 4 , 108 )…”

Section: Critical Needs Of Ltcm In Water Systemsmentioning

confidence: 99%

Forward-Looking Roadmaps for Long-Term Continuous Water Quality Monitoring: Bottlenecks, Innovations, and Prospects in a Critical Review

Huang

Wang

Xiang

et al. 2022

Environ. Sci. Technol.

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Long-term continuous monitoring (LTCM) of water quality can bring far-reaching influences on water ecosystems by providing spatiotemporal data sets of diverse parameters and enabling operation of water and wastewater treatment processes in an energy-saving and cost-effective manner. However, current water monitoring technologies are deficient for long-term accuracy in data collection and processing capability. Inadequate LTCM data impedes water quality assessment and hinders the stakeholders and decision makers from foreseeing emerging problems and executing efficient control methodologies. To tackle this challenge, this review provides a forward-looking roadmap highlighting vital innovations toward LTCM, and elaborates on the impacts of LTCM through a three-hierarchy perspective: data, parameters, and systems. First, we demonstrate the critical needs and challenges of LTCM in natural resource water, drinking water, and wastewater systems, and differentiate LTCM from existing short-term and discrete monitoring techniques. We then elucidate three steps to achieve LTCM in water systems, consisting of data acquisition (water sensors), data processing (machine learning algorithms), and data application (with modeling and process control as two examples). Finally, we explore future opportunities of LTCM in four key domains, water, energy, sensing, and data, and underscore strategies to transfer scientific discoveries to general end-users.

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“…The EPS recovered from granular sludge were found to be able to form hydrogels with peculiar rheological properties [ 136 , 166 ]. The hydrogel-forming capacity of sEPS allows for their potential application as an industrial paper coating to increase the waterproof properties [ 167 , 168 ].…”

Section: Extracellular Polymeric Substancesmentioning

confidence: 99%

“…As AGS-based sEPS have hydrophilic characteristics, they can be commercially applied to improve the curing of cement [ 166 ]. The mechanism is related to reducing moisture loss from the surface of cement-based materials, which is fundamental in construction engineering [ 169 ].…”

Section: Extracellular Polymeric Substancesmentioning

confidence: 99%

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Wastewater Valorization: Practice around the World at Pilot- and Full-Scale

Duque

Campo

Río

et al. 2021

IJERPH

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Over the last few years, wastewater treatment plants (WWTPs) have been rebranded as water resource recovery facilities (WRRFs), which recognize the resource recovery potential that exists in wastewater streams. WRRFs contribute to a circular economy by not only producing clean water but by recovering valuable resources such as nutrients, energy, and other bio-based materials. To this aim, huge efforts in technological progress have been made to valorize sewage and sewage sludge, transforming them into valuable resources. This review summarizes some of the widely used and effective strategies applied at pilot- and full-scale settings in order to valorize the wastewater treatment process. An overview of the different technologies applied in the water and sludge line is presented, covering a broad range of resources, i.e., water, biomass, energy, nutrients, volatile fatty acids (VFA), polyhydroxyalkanoates (PHA), and exopolymeric substances (EPS). Moreover, guidelines and regulations around the world related to water reuse and resource valorization are reviewed.

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Resource recovery from an aerobic granular sludge process treating domestic wastewater

Cited by 51 publications

References 34 publications

Chemical and Microbial Characterization of Washed Rice Water Waste to Assess Its Potential as Plant Fertilizer and for Increasing Soil Health

Chemical and Microbial Characterization of Washed Rice Water Waste to Assess Its Potential as Plant Fertilizer and for Increasing Soil Health

Forward-Looking Roadmaps for Long-Term Continuous Water Quality Monitoring: Bottlenecks, Innovations, and Prospects in a Critical Review

Wastewater Valorization: Practice around the World at Pilot- and Full-Scale

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