On the Use of an IoT Integrated System for Water Quality Monitoring and Management in Wastewater Treatment Plants

Water, Journal Year: 2020, Volume and Issue: 12(4), P. 1096 - 1096

Published: April 12, 2020

The deteriorating water environment demands new approaches and technologies to achieve sustainable smart management of urban systems. Wireless sensor networks represent a promising technology for quality monitoring management. use wireless facilitates the improvement current centralized systems traditional manual methods, leading decentralized adaptable dynamic heterogeneous distribution infrastructure cities. However, there is need low-cost node solution on market that enables cost-effective deployment this generation This paper presents integration network preliminary validation in wastewater treatment plant scenario device close-to-market stage. consists nitrate nitrite analyzer based novel ion chromatography detection method. analytical integrated using an Internet Things software platform tested under real conditions. By doing so, system conceived developed accomplished. In presented scenario, such allows online near-real-time communication with several devices deployed multiple plants provides preventive data analytics mechanisms support decision making. results obtained comparing laboratory measured demonstrate reliability method implemented device.

Language: Английский

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Relationships between nutrient, chlorophyll a and Secchi depth in lakes of the Chinese Eastern Plains ecoregion: Implications for eutrophication management

Journal of Environmental Management, Journal Year: 2020, Volume and Issue: 260, P. 109923 - 109923

Published: Jan. 21, 2020

Language: Английский

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Linker-Eliminated Nano Metal–Organic Framework Fluorescent Probe for Highly Selective and Sensitive Phosphate Ratiometric Detection in Water and Body Fluids

Analytical Chemistry, Journal Year: 2020, Volume and Issue: 92(5), P. 3722 - 3727

Published: Feb. 5, 2020

Phosphate is an important anion in both the aquatic environment and biological systems. The search for a selective sensitive phosphate ratiometric fluorescent probe to quantify level water samples body fluids of great significance protection ecological human health. Here, porphyrin-based nano metal–organic framework (NMOF), PCN-224, was successfully exploited as simple but highly single-component with accurate composition measurable structure quantitative determination phosphate, based on interesting double-emission fluorescence porphyrin ligand itself. Compared other zirconium-based NMOF probes reduced number connections ZrO clusters PCN-224 obtained by linker-elimination strategy simultaneously provides more active recognition sites which effectively improves sensitivity probes. detection limit only 54 nM. Additionally, accuracy this further proved serum drinking water.

Language: Английский

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The potential of seaweed cultivation to achieve carbon neutrality and mitigate deoxygenation and eutrophication

Environmental Research Letters, Journal Year: 2021, Volume and Issue: 17(1), P. 014018 - 014018

Published: Dec. 7, 2021

Abstract Carbon neutrality has been proposed due to the increasing concerns about consequences of rising atmospheric CO 2 . Previous studies overlooked role lost particle organic carbon (POC) and excreted dissolved (DOC) from seaweed cultivation in sequestration, that is say, long term storage oceanic sediments water. This study assessed potential achieve China by 2060 using a new method included POC DOC. Based on production years 2015–2019 China, harvested removed 605 830 tonnes carbon, 70 615 nitrogen 8 515 phosphorus seawaters annually; farmed sequestrated 344 128 generated 2533 221 oxygen annually. Among seven seaweeds, Gracilariopsis lemaneiformis highest capacities for removal (9.58 ha −1 yr ) sequestration (5.44 thus smallest area required sequestrate 2.5 Gt annually China’s goal 2060. The O could increase (0–3 m deep) 21% daily with gas exchange excluded, which effectively counteract deoxygenation seawaters. also N capacity while Saccharina japonica P capacity. To completely absorb released fish mariculture, level or two three times larger (assuming productivity remains unchanged) would be required. indicates play an important achieving mitigating eutrophication Cultivation cost offset some extent increased sales harvest parts food biofuel.

Language: Английский

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Dams shift microbial community assembly and imprint nitrogen transformation along the Yangtze River

Water Research, Journal Year: 2020, Volume and Issue: 189, P. 116579 - 116579

Published: Oct. 28, 2020

Language: Английский

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