Characteristics of change in water quality along reclaimed water intake area of the Chaobai River in Beijing, China

Yang, Lei; He, Jiangtao; Liu, Yumei; Wang, Jian; Jiang, Lie; Wang, Guangcai

doi:10.1016/j.jes.2016.05.023

Cited by 32 publications

(9 citation statements)

References 15 publications

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“…It should be noted that the highest pH was recorded for SW before addition of sediment, and the pH of the RW was higher than the CG. This may be attributed to a depletion of CO 2 due to photosynthesis by phytoplankton in RW [26]. After the addition of sediment, the pH of the three water bodies all increased.…”

Section: Change Of Ph In Water Before and After Reactionmentioning

confidence: 93%

“…Due to the limitations of reclaimed water treatment technology, the total nitrogen concentration in reclaimed water is higher, and the total phosphorus in reclaimed water is not easy to settle when compared with natural water [11,12]. Environmental factors such as the pH and dissolved oxygen in reclaimed water recharge are also significantly different from those in natural water [13]. Relevant studies have shown that these differences impact on the adsorption, accumulation and release of nitrogen and phosphorus by particulate matter in rainfall runoff [14].…”

Section: Introductionmentioning

confidence: 99%

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Nitrogen and Phosphorus Release Characteristics of Pipeline Sediments on Entering Different Water Bodies

Sun¹,

Xue²,

Li³

et al. 2023

Preprint

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Differences in the physical and chemical properties of reclaimed water (RW) and natural surface water (SW) lead to the differences in terms of nitrogen and phosphorus release when pipeline sediments enter these water bodies. The nitrogen and phosphorus release kinetics from pipe sediments with different particle sizes have been investigated. The results demonstrated that both SW and RW had a pH buffering effect after sediment addition, and the final pH (approximately 8.1) of RW was lower. The release of total phosphorus (TP) and ammonia nitrogen ( NH4+-N) fitted the first-order kinetic model where the release of TP reached equilibrium; TP release was inhibited in both SW and RW, where RW exhibited the lowest (by a factor of 1.23~2.44) release (0.002 mg/g). The release of NH4+-N was promoted in both SW and RW; the maximum release in RW was 0.0188 mg/g. The amounts of NH4+-N released in SW and RW were 1.02-1.40 and 1.30-1.80 times that of the control group (CG), respectively. The percentage of TP and NH4+-N release in the three groups was highest in 75-154 μm pipe sediment, reaching 34.53% and 43.51% in SW and RW, respectively. These results can assist in the development of water quality evolution models for specific urban scenarios, and provide important guidance for the precise regulation of recharge water quality during and after rainfall.

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Section: Change Of Ph In Water Before and After Reactionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Nitrogen and Phosphorus Release Characteristics of Pipeline Sediments on Entering Different Water Bodies

Sun¹,

Xue²,

Li³

et al. 2023

Preprint

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“…Reclaimed water has increasingly been used in rivers and lakes in Beijing in recent years, while the environmental risks to groundwater still remain poorly known [28,29]. The mechanism for contaminant removal and the corresponding impact factors through the RBF system with reclaimed water need to be further investigated.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen and Organics Removal during Riverbank Filtration along a Reclaimed Water Restored River in Beijing, China

Pan

Huang

2018

Water

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Reclaimed water has been widely used to restore rivers and lakes in water scarce areas as well as in Beijing municipality, China. However, refilling the rivers with reclaimed water may result in groundwater pollution. A three-year field monitoring program was conducted to assess the effect of a riverbank filtration (RBF) system on the removal of nitrogen and organics from the Qingyang River of Beijing, which is replenished with reclaimed water. Water samples from the river, sediment, and groundwater were collected for NO 3-N, NH 4-N, and chemical oxygen demand (COD) was measured. The results indicate that about 85% of NO 3-N was removed from the riverbed sediments. Approximate 92% of NH 4-N was removed during the infiltration of water from river to aquifer. On average, 54% of COD was removed by RBF. The attenuation of NO 3-N through RBF to the groundwater varied among seasons and was strongly related to water temperature. On the other hand, no obvious temporal variability was identified in the removal of COD. These results suggest that the RBF system is an effective barrier against NO 3-N, NH 4-N and COD in the Qingyang River, as well as those rivers with similar geological and climatic conditions refilled with reclaimed water.

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“…However, most sewage treatment plants receive complex influents consisting of municipal and industrial mixtures, thus the broad application of reclaimed water has been limited by water quality and safety [ 8 ]. Especially, the excess nitrogen found in reclaimed water would be one of the most important factors, and emission and utilization of reclaimed water without control would cause eutrophication [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic characterization of DOM and the nitrogen removal mechanism during wastewater reclamation plant

Wang

Xiong

et al. 2017

PLoS ONE

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The performance of the Sha-he wastewater reclamation plant was evaluated in this study. To remove residual nitrogen after Anaerobic-Anoxic-Oxic (A2O) treatment, three multistage Anoxic-Oxic (A/O) were added to investigate the nitrogen removal efficiency and its mechanism. In addition, the constituents and evolution of dissolved organic matter (DOM) during wastewater reclamation was also investigated using a method combining fluorescence spectroscopy with fluorescence regional integration (FRI). The results suggested that multistage A/O treatment can effectively improve the nitrogen removal ability under low concentrations of carbon sources. The total nitrogen (TN) exhibits significantly positive correlation with fulvic acid-like materials and humic acid-like materials. The correlation coefficient for TN and fulvic acid-like substances (R2 = 0.810, P < 0.01) removal was greater than that of humic acid-like substances (R2 = 0.636, P < 0.05). The results indicate that nitrogen removal may be achieved with the fulvic-like and humic-like substances, and the removal effects were higher by fulvic acid-like substances than humic-like substances, mostly due to that the latter were relatively more difficult to be utilized as carbon source during the nitrogen removal process. The effluent water quality of biological treatment reached the first grade A standard of “Cities sewage treatment plant pollutant discharge standard” (GB18918-2002). In addition, the effluent from the membrane bioreactor reached the “Standards of reclaimed water quality” (SL368-2006).

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Characteristics of change in water quality along reclaimed water intake area of the Chaobai River in Beijing, China

Cited by 32 publications

References 15 publications

Nitrogen and Phosphorus Release Characteristics of Pipeline Sediments on Entering Different Water Bodies

Nitrogen and Phosphorus Release Characteristics of Pipeline Sediments on Entering Different Water Bodies

Nitrogen and Organics Removal during Riverbank Filtration along a Reclaimed Water Restored River in Beijing, China

Spectroscopic characterization of DOM and the nitrogen removal mechanism during wastewater reclamation plant

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