Life-Cycle Assessment of Tertiary Treatment Technologies to Treat Secondary Municipal Wastewater for Reuse in Agricultural Irrigation, Artificial Recharge of Groundwater, and Industrial Usages

Akhoundi, A Haji; Nazif, Sara

doi:10.1061/(asce)ee.1943-7870.0001690

Cited by 24 publications

(4 citation statements)

References 29 publications

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“…LCA analyzed above eco-friendly and economic advantages of solar-driven biohybrid synthesis via system expansion eliminating wastewater treatment 16 . Typical wastewater treatment process, anaerobic-anoxic-aerobic (A 2 O) as the secondary treatment with front-end primary treatment, is assumed here to treat the molasses wastewater with high COD 53,65 , while coagulation/flocculation-sedimentation-filtration-ultraviolet reduction as the tertiary treatment is assumed here to concentrate heavy-metal ions in electroplating wastewater, and functional unit of wastewater treatment is 1 m 3 influent 66 . The residual sludge from wastewater treatment is thickened, dewatered, and transferred to the landfill sites 53 .…”

Section: Supplementary Methodsmentioning

confidence: 99%

Scalable Solar-Driven Chemical Production by Semiconductor Biohybrids Synthesized from Wastewater Pollutants

Yang

Feng

et al. 2023

Preprint

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Semiconductors biohybrids integrate the best of biological catalysts and semiconductor nanomaterials for solar-to-chemical conversion. To realize the potential of hybrid systems at the commercial level, it remains an urgent need for cost-competitive and environmentally friendly approaches to scaling up. Here, we successfully tackle this challenge through developing biohybrid route that co-utilize multi-pollutants in wastewater to produce semiconductor biohybridsin-situfor solar-to-chemical production. To achieve cost-effective biohybrid production, we introduced an aerobic sulfate reduction pathway intoVibrio natriegensto enable the direct utilization of the heavy metal ions (i.e., Cd2+), sulfate, and organics in the wastewater to biosynthesize functional semiconductor nanoparticles in livingV. natriegens. Furthermore, 2,3-butanediol biosynthetic pathway was introduced into theV. natriegenshybrid to couple the solar energy for enhanced bioproduction. We demonstrated the scalability of this system in a 5-L illuminated fermenter using wastewater as the feedstock, which resulted in production of 13 g/L of 2,3-butanediol. Life cycle analysis showed this specific biohybrid route had a significantly lower cost and reduced CO2emission compared to both pure sugars fermentation and fossil-based routes. In addition to providing a promising step toward sustainable commercializing semiconductor biohybrids for biomanufacturing, our work may lead to hybrid living matter toward future waste to wealth conversion.

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Section: Supplementary Methodsmentioning

confidence: 99%

Scalable Solar-Driven Chemical Production by Semiconductor Biohybrids Synthesized from Wastewater Pollutants

Yang

Feng

et al. 2023

Preprint

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“…Considering sustainability, in the AFSC, the most common topics were reducing food waste and surpluses in operational processes [69][70][71][72][73] and improving energy efficiency [72,74]. There are some technologies that seek to bring this sustainability topics closer to the AFSC, i.e., AI by reducing food waste [35,[75][76][77][78]; Big Data by enhancing the achievement of the Sustainable Development Goals (SDG) related to safety, traceability and food quality [79]; CPSs by helping with the implementation of the life-cycle analysis (LCA) [80]; and IoT by improving the energy efficiency of the AFSC [81].…”

Section: Rq2 Which Are the Most Relevant Technologies For Afsc Development?mentioning

confidence: 99%

Study and Analysis of the Implementation of 4.0 Technologies in the Agri-Food Supply Chain: A State of the Art

et al. 2021

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Industry 4.0 is changing the industrial environment. Particularly, the emerging Industry 4.0 technologies can improve the agri-food supply chain throughout all its stages. This study aims to highlight the benefits of implementing Industry 4.0 in the agri-food supply chain. First, it presents how technologies enhance the agri-food supply chain development. Then, it identifies and highlights the most common challenges that Industry 4.0 implementation faces in agri-food’s environment. After that, it proposes key performance indicators to measure the advantages of this implementation. To achieve this, a systematic literature review was conducted. It combined conceptual and bibliometric analyses of 78 papers. As a result, the most suitable technologies were identified, e.g., Internet of Things, Big Data, blockchain and cyber physical systems. The most used indicators are proposed and the challenges of implementation were detected and classified in three groups, i.e., technical, educational and governmental. This paper highlights and exemplifies the benefits of implementing Industry 4.0 facing the lack of knowledge that exists nowadays. Moreover, it fulfils the gaps in literature, i.e., the lack of information about the implementation of technologies 4.0 or the description of the most relevant indicators for Industry 4.0 implementation.

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“…As a result, coagulation, membrane filtration, chlorination, and ultraviolet radiation are operated. Moreover, there were many other processes available for the treatment of sewage includes membrane distillation, electrodialysis, electrochemical oxidation, photo-electron oxidation, combined coagulation, reverse osmosis membranes, a hybrid reed bed constructed wetland, and microalgae tertiary treatment into activated sludge systems [10][11][12][13][14][15][16][17]. However, the abovementioned process as an individual is not effective in removing contaminants [18] but an integrated or hybrid approach of treating wastewater is one of the most promising advancements aroused that can be successful and possess more advantages such as reduction of BOD/COD loads, production of favorable effluent quality, eliminates odor, less volume sludge, produce nutrient water for plant irrigation, and increased recycling benefits [19,20].…”

Section: Introductionmentioning

confidence: 99%

Treatability Studies on the Optimization of Ozone and Carbon Dosages for the Effective Removal of Contaminants from Secondary Treated Effluent

Kumar

Kanmani

Kumar

2022

Adsorption Science & Technology

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This study investigates the novel and advanced integrated pilot-scale treatment system of removal of contaminants in the secondary effluent from municipal wastewater. The main intent of this work is to assess the combination of pressure sand filter (PSF), ultrafiltration (UF), ozone (O3), and granular activated carbon (GAC) to treat wastewater and evaluate its suitability for water reuse. The experiments were carried out in a following condition: (Abdel-Raouf et al., 2019) PSF + UF + O 3 + GAC , (Akhoundi & Nazif, 2020) PSF + O 3 + GAC , and (Alcamo et al., 2010) PSF + UF + GAC . Configuration 1 was found to be more effective when compared to the other two and almost there occurred complete removal of contaminants. Whereas configuration 2 had the lowest removal efficiency of all, and configuration 3 had quite positive results. The influence of process parameters such as ozone dosage, flow rate, and filtration time was optimized. The optimized filtration time was 20 min with the filtration feed flow rate of 300 LPH. The best configuration of this treatment process produced a removal efficiency of about 80 to 90% with the ozone dosage of 8.33 mg/L with a flow rate of 4 l/min, whereas there occurred complete removal by the subsequent action of GAC. Moreover, the biodegradability of wastewaters as measured by the BOD5/COD ratio increased from 0.45 to 0.53. The proposed integrated pilot-scale process was effective in removing contaminants to the required level of discharge in the environment or reuse and it will pave the way to provide significant benefits to wastewater treatment.

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Life-Cycle Assessment of Tertiary Treatment Technologies to Treat Secondary Municipal Wastewater for Reuse in Agricultural Irrigation, Artificial Recharge of Groundwater, and Industrial Usages

Cited by 24 publications

References 29 publications

Scalable Solar-Driven Chemical Production by Semiconductor Biohybrids Synthesized from Wastewater Pollutants

Scalable Solar-Driven Chemical Production by Semiconductor Biohybrids Synthesized from Wastewater Pollutants

Study and Analysis of the Implementation of 4.0 Technologies in the Agri-Food Supply Chain: A State of the Art

Treatability Studies on the Optimization of Ozone and Carbon Dosages for the Effective Removal of Contaminants from Secondary Treated Effluent

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