Distribution and genetic diversity of microbial populations in the pilot-scale biofilter for simultaneous removal of ammonia, iron and manganese from real groundwater

Cheng, Qingfeng; Nengzi, Li-chao; Bao, Linlin; Huang, Yang; Liu, Shengyu; Cheng, Xiuwen; Li, Bo; Zhang, Jie

doi:10.1016/j.chemosphere.2017.05.075

Cited by 62 publications

(21 citation statements)

References 30 publications

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“…In the literature, biological oxidation and removal capacities of Mn(II) from solution are reported extensively [73,[75][76][77][78][79][80][81][82][83][84][85][86][87][88][89] (Table 4). Biological removal of Mn has mainly been applied to the remediation of groundwater and artificial wastewater systems.…”

Section: Biological Treatment Of Mn(ii)mentioning

confidence: 99%

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Removal of Manganese(II) from Acid Mine Wastewater: A Review of the Challenges and Opportunities with Special Emphasis on Mn-Oxidizing Bacteria and Microalgae

et al. 2019

Water

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Many global mining activities release large amounts of acidic mine drainage with high levels of manganese (Mn) having potentially detrimental effects on the environment. This review provides a comprehensive assessment of the main implications and challenges of Mn(II) removal from mine drainage. We first present the sources of contamination from mineral processing, as well as the adverse effects of Mn on mining ecosystems. Then the comparison of several techniques to remove Mn(II) from wastewater, as well as an assessment of the challenges associated with precipitation, adsorption, and oxidation/filtration are provided. We also critically analyze remediation options with special emphasis on Mn-oxidizing bacteria (MnOB) and microalgae. Recent literature demonstrates that MnOB can efficiently oxidize dissolved Mn(II) to Mn(III, IV) through enzymatic catalysis. Microalgae can also accelerate Mn(II) oxidation through indirect oxidation by increasing solution pH and dissolved oxygen production during its growth. Microbial oxidation and the removal of Mn(II) have been effective in treating artificial wastewater and groundwater under neutral conditions with adequate oxygen. Compared to physicochemical techniques, the bioremediation of manganese mine drainage without the addition of chemical reagents is relatively inexpensive. However, wastewater from manganese mines is acidic and has low-levels of dissolved oxygen, which inhibit the oxidizing ability of MnOB. We propose an alternative treatment for manganese mine drainage that focuses on the synergistic interactions of Mn in wastewater with co-immobilized MnOB/microalgae.

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Section: Biological Treatment Of Mn(ii)mentioning

confidence: 99%

“…Biofilters or BAF commonly are used for biological Mn(II) oxidation during the treatment of groundwater or artificial wastewater [73,77,83,84]. During this procedure, MnOB immobilized by filtering media are directly exposed to the Mn(II) ions.…”

Section: Mn(ii) Removal From Mn Ore Wastewater By Co-immobilized Mnobmentioning

confidence: 99%

Removal of Manganese(II) from Acid Mine Wastewater: A Review of the Challenges and Opportunities with Special Emphasis on Mn-Oxidizing Bacteria and Microalgae

et al. 2019

Water

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“…Groundwaters are the main source of drinking water around the world [1,2]. In many cases, groundwater is characterized by an increased content of iron, manganese, and ammonium nitrogen compounds and their presence may contribute to deterioration of the organoleptic quality of the water and discoloration of sanitary facilities, as well as the formation of deposits in the water pipes [1,[3][4][5][6]. Although iron and manganese are necessary for the proper functioning of the human body, their consumption in excessive amounts, in particular manganese, may be the cause of chronic food poisoning, pulmonary embolism, bronchitis, impotence, nerve damage, or Parkinson's disease [7,8].…”

Section: Introductionmentioning

confidence: 99%

The Use of Chalcedonite as a Biosorption Bed in the Treatment of Groundwater

et al. 2019

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The conducted laboratory tests allowed determination of the efficiency of removing ammonium nitrogen, iron, and manganese in the biofiltration process on chalcedonite beds. The process of water purification was carried out by a single- and two-stage biofiltration method with gravitational and anti-gravitational flow. The study examined the extent to which chemical activation of the bed with potassium manganese (VII) affects the course of the nitrification process and the rate of biofilm formation. The obtained test results indicate that two-stage biofiltration, with initial chemical activation at the first stage of biofiltration, is an effective method for purifying waters with an abnormal content of ammonium nitrogen with simultaneous removal of iron and manganese. Activation of the bed had an effect on, among other things: biofilm formation time, efficiency of removing manganese (II) ions, and oxygen consumption in the biofiltration process. Due to the longer maturation time of the activated bed, the normative value of ammonium nitrogen (< 0.39 N-NH4+) was obtained on the 23rd day of the operation of the filters, and in the non-activated bed on the 14th day. The method of bed preparation did not affect the efficiency of removal of iron compounds.

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“…The major source of drinking water in rural areas is groundwater, and the existing status of Fe 2+ and Mn 2+ in groundwater exceeds the safety standards in some areas; 3,4 according to the drinking water health standards of China (GB54789-2006), the Fe 2+ content in drinking water should not be more than 0.3 mg L À1 and the Mn 2+ content in drinking water should not be more than 0.1 mg L À1 because water containing Fe 2+ and Mn 2+ in excess is harmful for drinking in the long run. An excessive intake of Fe 2+ and Mn 2+ can result in osteoporosis, liver cirrhosis, Parkinson's disease and damage to the central nervous system of humans, leading to organ damage; [5][6][7] in addition, excess Fe 2+ and Mn 2+ in water can lead to mass problems in some aspects of industrial production.…”

Section: Introductionmentioning

confidence: 99%

Fe(ii) and Mn(ii) removal by Ca(ii)–manganite (γ-MnOOH)-modified red mud granules in water

Zhu

et al. 2019

RSC Adv.

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Distribution and genetic diversity of microbial populations in the pilot-scale biofilter for simultaneous removal of ammonia, iron and manganese from real groundwater

Cited by 62 publications

References 30 publications

Removal of Manganese(II) from Acid Mine Wastewater: A Review of the Challenges and Opportunities with Special Emphasis on Mn-Oxidizing Bacteria and Microalgae

Removal of Manganese(II) from Acid Mine Wastewater: A Review of the Challenges and Opportunities with Special Emphasis on Mn-Oxidizing Bacteria and Microalgae

The Use of Chalcedonite as a Biosorption Bed in the Treatment of Groundwater

Fe(ii) and Mn(ii) removal by Ca(ii)–manganite (γ-MnOOH)-modified red mud granules in water

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