Migration and Control of Invertebrates in Waterworks with Advanced Treatment

Zhu, Jie; Tang, Xianchun; Wu, Zhiling; Chen, Hongbin

doi:10.1061/(asce)ee.1943-7870.0001366

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…This "natural" start-up method is widespread since it requires no extra inoculation activities. Further, it may be attractive to avoid contaminating virgin filter medium with mature medium that may contain invertebrates and the like (Zhu et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Comprehensive analysis of the start-up period of a full-scale drinking water biofilter provides guidance for optimization

Ramsay

Breda

Søborg

2018

Drink. Water Eng. Sci.

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Abstract. The use of biofilters to produce drinking water from anaerobic groundwater is widespread in some European countries. A major disadvantage of biofilters is the long start-up period required for virgin filter medium to become fully functional. Although individual aspects of biofilter start-up have previously been investigated, no comprehensive study in full scale using inherent inoculation has previously been documented. A thorough investigation of a full-scale drinking water biofilter was carried out over 10 weeks of start-up. The many spatial and temporal changes taking place during start-up were documented using a holistic approach. In addition to collection of many samples over time (frequency) and space (filter depth), this study entailed the use of multiple sample media (water, backwash water and filter media) and multiple types of analyses (physical, chemical and microbiological). The decrease in filter effluent concentrations of individual substances to compliance levels followed a specific order that was shown to coincide with the spatiotemporal development of bacteria on the filter media. Due to the abiotic nature of the iron removal process, iron disappears at the earliest in the start-up period followed by substances that require growth of microorganisms. Ammonium disappears next, with nitrite appearing briefly near the end of ammonium removal, followed by manganese. The thorough overall picture obtained by these efforts provides guidance for optimization and monitoring of the start-up. Guidance for optimization includes shortening the start-up by focusing on kick-starting the ammonium removal; limiting the monitoring burden (at-line measurements of ammonium in finished water supplemented with manual manganese measurements when ammonium removal is complete); and improving filter design by isolating the removal processes in separate, smaller filters.

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Section: Introductionmentioning

confidence: 99%

Comprehensive analysis of the start-up period of a full-scale drinking water biofilter provides guidance for optimization

Ramsay

Breda

Søborg

2018

Drink. Water Eng. Sci.

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“…Among various AOPs, UV/H 2 O 2 and ozonation processes are the most studied ones in the integrated and hybrid processes, possibly due to scale-up feasibility and good performance in the MP removal [240][241][242][243][244]. In a pilot-scale study, Du et al [176] compared UV/H 2 O 2 -BAC and O 3 -BAC systems in a drinking water treatment plant.…”

Section: Hybrid and Sequential Treatment Strategiesmentioning

confidence: 99%

Integrated and Hybrid Processes for the Treatment of Actual Wastewaters Containing Micropollutants: A Review on Recent Advances

Asheghmoalla,

Mehrvar

2024

Processes

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The global concern regarding the release of micropollutants (MPs) into the environment has grown significantly. Considerable amounts of persistent micropollutants are present in industrial discharges. Depending solely on a singular treatment approach is inadequate for the effective removal of MPs from wastewater due to their complex composition. The performance of different treatment methods to meet the discharge standards has been widely studied. These efforts are classified as hybrid and sequential processes. Despite their adequate performance, the optimization and industrial application of these methods could be challenging and costly. This review focuses on integrated (sequential) and hybrid processes for MP removal from actual wastewater. Furthermore, to provide a thorough grasp of the treatment approaches, the operational conditions, the source of wastewater containing MPs, and its characteristics are detailed. It is concluded that the optimal sequence to achieve the removal of MPs involves biological treatment followed by an advanced oxidation process (AOP) with a final passage through an activated carbon column. To refine this process further, a membrane unit could be added based on the desired effluent quality. Nevertheless, considering practical feasibility, this study identifies specific areas requiring additional research to implement this integrated treatment strategy effectively.

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Seasonal and treatment-process variations in invertebrates in drinking water treatment plants

Tang

Chen

2020

Front. Environ. Sci. Eng.

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Migration and Control of Invertebrates in Waterworks with Advanced Treatment

Cited by 5 publications

References 6 publications

Comprehensive analysis of the start-up period of a full-scale drinking water biofilter provides guidance for optimization

Comprehensive analysis of the start-up period of a full-scale drinking water biofilter provides guidance for optimization

Integrated and Hybrid Processes for the Treatment of Actual Wastewaters Containing Micropollutants: A Review on Recent Advances

Seasonal and treatment-process variations in invertebrates in drinking water treatment plants

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