Novel adaptive activated sludge process leverages flow fluctuations for simultaneous nitrification and denitrification in rural sewage treatment

Water Research, Journal Year: 2024, Volume and Issue: 255, P. 121535 - 121535

Published: March 28, 2024

Language: Английский

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Insights into carbon-neutral treatment of rural wastewater by constructed wetlands: A review of current development and future direction

Environmental Research, Journal Year: 2024, Volume and Issue: 262, P. 119796 - 119796

Published: Aug. 13, 2024

Language: Английский

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Preparation of ternary composite film TiO2/Fe2O3/Ti3C2 for photoelectrocatalytic degradation of organic pollutants and bacterial inactivation in water

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(4), P. 113187 - 113187

Published: June 2, 2024

Language: Английский

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Biofiltration for low-carbon rural wastewater treatment: A review of advancements and opportunities towards carbon neutrality

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(6), P. 114373 - 114373

Published: Oct. 9, 2024

Language: Английский

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Assessing the Water Quality of Rivers of a Small Town in Wangwenzhuang, Tianjin, China, Using the PCA–WQImin Method

Sustainability, Journal Year: 2025, Volume and Issue: 17(7), P. 3035 - 3035

Published: March 28, 2025

The deterioration of the water environment in small towns China due to urbanization has posed a significant challenge their socioeconomic sustainability. Therefore, this study aims employ an integrated assessment method based on principal component analysis–minimal quality index model (PCA–WQImin) objectively evaluate and analyze pollution characteristics Wangwenzhuang Tianjin, thereby providing scientific basis decision-making support for sustainable development towns. This study’s findings reveal that PCA–WQImin identified four key parameters essential comprehensive across seasonal spatial variations. analysis revealed investigated region remained at “poor” level, with relatively consistent levels catchments, ranked from poorest best as Xingchilong catchment area (29.61) < Jianxinpaigan (31.03) Chilong (32.94) Machangjian (39.61). average WQImin values slightly increased wet season relative those dry season. research highlights critical importance effectively managing domestic rural sewage aquaculture increase surface Pollution prevention policies multiple sources evaluation will be considered focus future studies.

Language: Английский

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Suitability Evaluation of Rural Domestic Sewage Treatment Processes in Cold Areas of Northeast China: Regional Differences Analysis and Engineering Application

Published: Jan. 1, 2024

Language: Английский

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Investigation of high-rate algal ponds for the treatment of domestic sewage with low carbon-to-nitrogen ratio

Chemical Engineering Journal Advances, Journal Year: 2024, Volume and Issue: 19, P. 100635 - 100635

Published: Aug. 1, 2024

Sewage with a low carbon-to-nitrogen (C/N) ratio can be effectively treated using high-rate algal ponds (HRAPs), consisting of combined symbiotic system algae and bacteria. However, HRAPs have been predominantly used in laboratories, but their application wastewater treatment plants is yet to realized. Herein, laboratory pilot-scale experimental studies were conducted wetland effluent from the Baitabao estuary ecological plant Liaozhong County. The ammonia nitrogen (NH4+–N) chemical oxygen demand (COD) concentrations lab-scale decreased <4 <45 mg L−1, respectively while those test reduced 1.51 9.15 respectively. primary bacteria Pseudomonas sp., Massilia Kocuria Bacillus cereus group, Exiguobacterium acetylicum dominant Chlorella. Results confirm that treat domestic sewage low-C/N ratios meeting China's Pollutant Emission Urban Treatment Plants (GB 18918-2002) Level 1A standard. Studies on growth degradation kinetics reported (1) specific proliferation rate algal–bacterial mixed stemmed joint action single Chlorella, (2) there was no mutual inhibition between Chlorella system, (3) responsible for greater proportion COD removal, (4) removed NH4+–N primarily via adsorption, absorption, transformation. This study demonstrates promising potential practical implementation.

Language: Английский

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Multi-Scenario Simulation of Land Use/Cover Change and Terrestrial Ecosystem Carbon Reserve Response in Liaoning Province, China

Sustainability, Journal Year: 2024, Volume and Issue: 16(18), P. 8244 - 8244

Published: Sept. 22, 2024

Land use/cover change (LUCC) can either enhance the areal carbon reserve capacity or exacerbate emission issues, thereby significantly influencing global climate change. Comprehending impact of LUCC on regional variation holds great significance for ecosystem preservation and socioeconomic sustainable development. This study focuses Liaoning Province, leveraging land use remote sensing data from three periods 2000 to 2020, natural environmental in conjunction with Integrated Valuation Environmental Services Trade-offs (InVEST) model, patch-generating simulation (PLUS) models. It analyzes interactive relationship between reserves Province 2020 forecasts trajectory changes under various scenarios: business as usual, urban development, cropland protection, ecological all based simulations. The findings indicate following: (1) Over period, experienced significant characterized primarily by transformation farmland built-up land. Carbon initially declined later increased due changes, resulting a cumulative increase 30.52 Tg C. spatial distribution was influenced LUCC, displaying pattern aggregation, higher values east lower west. (2) Across four scenarios, continued exhibit characteristic aggregation Under development scenario, decreased 34.56 C tons, representing 2.45% decrease compared 2020. Conversely, business-as-usual, cultivated protection displayed growing tendency, reaching 1449.35 C, 1450.39 1471.80 respectively, 0.09%, 0.16% 1.63% substantial scenario stemmed expansion woodland other areas. In light these findings, may consider laying down strictly executing policies future projecting. PLUS model InVEST help curb uncontrolled land, facilitate increment areas, effect augment reserves, ensuring achievement “double carbon” target peak neutralization.

Language: Английский

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Systematic Assessment of Practical Challenges in Rural Domestic Sewage Treatment in China: Examining Treatment Models, Ecological Risks, and Management Dilemmas

Separations, Journal Year: 2024, Volume and Issue: 11(10), P. 287 - 287

Published: Oct. 9, 2024

The treatment and purification of rural domestic sewage (RDS) is a pivotal focus in enhancing the living environment areas. Since 2008, special funds for comprehensive environmental improvement have been established by Chinese government. Numerous projects implemented to treat RDS, resulting significant enhancement China’s ratio. However, current discussions often on technical investigations, process selection, operation modes pertaining urban while overlooking unique challenges posed decentralized facilities This work aims provide support addressing China through an analysis limitations associated with prevailing mainstream separation technologies, ecological risks arising from new pollutants present wastewater, subsequent management difficulties.

Language: Английский

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Suitability evaluation of rural domestic sewage treatment processes in cold areas of Northeast China: Regional differences analysis and engineering application

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 371, P. 123213 - 123213

Published: Nov. 7, 2024

Language: Английский

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