Operational performance of biological treatment plant for iron and manganese removal

Li, Dong; Zhang, Jie; Wang, Hongtao; Yang, Hong; Wang, Baozhen

doi:10.2166/aqua.2005.0002

Cited by 31 publications

(29 citation statements)

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“…In 2001, a groundwater treatment plant was built in Shenyang, Liaoning province China, which adopted the novel biological process for iron and manganese removal. The satisfactory removal of iron and manganese and the low operation/maintenance costs have been reported (Li et al 2005). The excellent quality of filtrate (Fe < 0.05mgr', Mn<0.05mgl ') proved the validity of the biological process for iron and manganese removal from groundwater {Fe^^: 0.01-0.5mgl"'.…”

Section: Introductionmentioning

confidence: 83%

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Application of biological process to treat the groundwater with high concentration of iron and manganese

Zhang

Wang

et al. 2006

Journal of Water Supply: Research and Technology-Aqua

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A biological process was adopted In a groundwater plant for iron and manganese removal. The process included low-level aeration and single stage biological filtration. The separated native iron and manganese oxidizing bacteria were inoculated to the filter bed alongside raw water containing high concentrations of iron and manganese after multiplication (Fe^*io-I4mgi \ Mn^* 0.65-1.1 mgl ^)-The predominance of iron and manganese oxidizing bacteria were maintained in the filter by appropriately monitoring the operational parameters (filtration rate, backwash Intensity, backwash duration and backwash period). Then the filter had a significant and stable ability for iron and manganese removal. The quality of the filtrate met the Chinese National Standard for Drinking Water with concentrations of 0.05-0.1 mgl"^ Total-Fe (T-Fe) and 0.05mgl "^ Total-Mn (T-Mn) under the condition of the normal filtration rate (5-7mh ''), The process reduced investment costs by 6 million yuans (¥) and power costs by 250 thousand yuans (¥) per year compared with the traditional process (chemistry-contact oxidation including two-stage aeration and two-stage filtration).

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Section: Introductionmentioning

confidence: 83%

“…It is known that groundwater is the only water resource in many countries (Li & Liu 1989;Gao 2004;Zhang et al 2005). It is a common phenomenon for the groundwater to contain iron and manganese (Fe^^, Mn^^) (Zhou & Zhu 1997;Murdoch & Smith 2000).…”

Section: Introductionmentioning

confidence: 99%

Application of biological process to treat the groundwater with high concentration of iron and manganese

Zhang

Wang

et al. 2006

Journal of Water Supply: Research and Technology-Aqua

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“…Furthermore, the matured Mn sand, which was selected from a biological Fe, Mn, and NH 3 -N removal plant that operated at an approximate 10˚C water temperature, was inoculated to the upper part of the filter bed when the operation began, and thus, the total height of the filter bed was 130 cm. Additionally, the biofilters in that plant have been operated for several years and the start-up period was about 2-3 months [17]. The raw water was pumped from the secondary cascaded-aeration tank of the water supply plant, and used as inflow and backwashing water.…”

Section: Groundwater and Pilot Devicementioning

confidence: 99%

Operational parameters required for the start-up process of a biofilter to remove Fe, Mn, and NH3-N from low-temperature groundwater

Cai

Liang

et al. 2016

Desalination and Water Treatment

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A B S T R A C TStart-up experiments were carried out using a constructed a pilot-scale biofilter in a water supply plant to purify iron (Fe), manganese (Mn), and ammonia (NH 3 -N) from low-temperature groundwater (3-4˚C throughout the year). The results of the biofilter operation indicated that the simultaneous removal of these contaminants could be obtained with a one-stage biofilter, while the operational parameters such as aeration and backwashing strength (BWS) should be optimized during the start-up operation period. Removal of Fe was most likely dominated by chemical oxygen oxidation since the biofilter exhibited high removal efficiency at the initial running period and the start-up time was not required. Higher levels of aeration (that corresponds to higher dissolved oxygen concentration) helped to transform the water redox environment and increase Mn removal. Nitrification effects were irrelevant with the extra aeration. A weaker BWS was helpful in avoiding biomass loss during the initial operation of the biofilter; however, the BWS should be improved to eliminate excess amounts of metal oxide accumulation after a long operation time, since it could enhance the overall removal. Using high-throughput sequencing technology, the functional bacteria genera were identified. It was demonstrated that the corresponding functional oxidizing bacteria could be acclimated sufficiently in low-temperature water.

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“…More importantly, simultaneous removal of these contaminants could be achieved by using a one-stage biofilter (Abu Hasan et al, 2012;Gouzinis et al, 1998;Štembal et al, 2004;Tekerlekopoulou and Vayenas, 2008), which simplifies the treatment processes and reduces costs. Li et al (2005) demonstrated that using biological processes in a water supply plant (total treatment capacity: 12 Â 10 4 m 3 day À1 ) could reduce investment costs by 50 million yuan (¥), and operational and maintenance costs by ¥12,000 per day. Meanwhile, Tekerlekopoulou et al (2013) describing and summarizing the work of Mouchet (1992) noted that a shift from abiotic to biotic methods could substantially increase treatment capacity and reduce operational costs by up to 80%.…”

Section: Introductionmentioning

confidence: 99%

“…The inoculation levels of microorganisms in a newly built full-scale biofilter seem to be insufficient to achieve simultaneous removal immediately. Although reports describing the profile of Mn concentrations during the start-up period of full-scale biofilters are rare, Li et al (2005) demonstrated that a start-up period of 2-3 months was necessary. The required values of standards for Fe, Mn, and ammonia in China are 0.3 mg/L, 0.1 mg/L, and 0.5 mg/L, respectively (SEPA, 2002).Therefore, ways to shorten the start-up period is of great importance for the further application of this biotechnology.…”

Section: Introductionmentioning

confidence: 99%

Effective start-up biofiltration method for Fe, Mn, and ammonia removal and bacterial community analysis

Cai

Liang

et al. 2015

Bioresource Technology

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Operational performance of biological treatment plant for iron and manganese removal

Cited by 31 publications

References 0 publications

Application of biological process to treat the groundwater with high concentration of iron and manganese

Application of biological process to treat the groundwater with high concentration of iron and manganese

Operational parameters required for the start-up process of a biofilter to remove Fe, Mn, and NH3-N from low-temperature groundwater

Effective start-up biofiltration method for Fe, Mn, and ammonia removal and bacterial community analysis

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