Developing efficient nutrient removal and resource recovery strategy towards synergistic MLW treatment using macroalgae in a flat panel photobioreactor

To limit effluent impacts on eutrophication in receiving waterbodies, a small community water resource recovery facility (WRRF) upgraded its conventional activated sludge treatment process for biological nutrient removal, and considered enhanced primary settling and anaerobic digestion (AD) with co-digestion of high strength organic waste (HSOW). The community initiated the resource recovery hub concept with the intention of converting an energy-consuming wastewater treatment plant into a facility that generates energy and nutrients and reuses water. We applied life cycle assessment and life cycle cost assessment to evaluate the net impact of the potential conversion. The upgraded WRRF reduced eutrophication impacts by 40% compared to the legacy system. Other environmental impacts such as global climate change potential (GCCP) and cumulative energy demand (CED) were strongly affected by AD and composting assumptions. The scenario analysis showed that HSOW co-digestion with energy recovery can lead to reductions in GCCP and CED of 7% and 108%, respectively, for the upgraded WRRF (high feedstock-base AD performance scenarios) relative to the legacy system. The cost analysis showed that using the full digester capacity and achieving high digester performance can reduce the life cycle cost of WRRF upgrades by 15% over a 30-year period.

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Verification of the Effect of Measures to Preserve Manila Clam Resources in the Nature Restoration Project at Yamaguchi Bay and Examination of the Resource Recovery Strategy with the Management Model

Journal of Japan Society on Water Environment ◽

10.2965/jswe.34.143 ◽

2011 ◽

Vol 34 (9) ◽

pp. 143-152

Author(s):

Akihiko FUJII ◽

Masahiko SEKINE ◽

Sayumi OZOE ◽

Junko HAGIHARA ◽

Koji KAKUNO

Keyword(s):

Resource Recovery ◽

Manila Clam ◽

Management Model ◽

Recovery Strategy ◽

Restoration Project ◽

Nature Restoration

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Resource recovery toward sustainability through nutrient removal from landfill leachate

Journal of Environmental Management ◽

10.1016/j.jenvman.2021.112265 ◽

2021 ◽

Vol 287 ◽

pp. 112265

Author(s):

Tonni Agustiono Kurniawan ◽

Deepak Singh ◽

Wenchao Xue ◽

Ram Avtar ◽

Mohd Hafiz Dzarfan Othman ◽

...

Keyword(s):

Landfill Leachate ◽

Nutrient Removal ◽

Resource Recovery

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Plant-wide modelling in wastewater treatment: showcasing experiences using the Biological Nutrient Removal Model

Water Science & Technology ◽

10.2166/wst.2020.056 ◽

2020 ◽

Vol 81 (8) ◽

pp. 1700-1714 ◽

Cited By ~ 3

Author(s):

A. Seco ◽

M. V. Ruano ◽

A. Ruiz-Martinez ◽

A. Robles ◽

R. Barat ◽

...

Keyword(s):

Wastewater Treatment ◽

Water Resource ◽

Nutrient Removal ◽

General Model ◽

Resource Recovery ◽

Biological Nutrient Removal ◽

New Treatment ◽

Removal Model ◽

Novel Processes

Abstract Plant-wide modelling can be considered an appropriate approach to represent the current complexity in water resource recovery facilities, reproducing all known phenomena in the different process units. Nonetheless, novel processes and new treatment schemes are still being developed and need to be fully incorporated in these models. This work presents a short chronological overview of some of the most relevant plant-wide models for wastewater treatment, as well as the authors' experience in plant-wide modelling using the general model BNRM (Biological Nutrient Removal Model), illustrating the key role of general models (also known as supermodels) in the field of wastewater treatment, both for engineering and research.

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