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Zero-valent iron (ZVI) treatment system combined with pH adjustment, aeration, sedimentation, and microfiltration processes was developed for the robust removal of nitrate from groundwater. Powdered ZVI dosed at 10 g L⁻¹ removed nitrate by 166 mg L⁻¹, of which 80% were converted to ammonium ion for a given contact time of 125 hr. By diffusing gaseous carbon dioxide (CO₂)into the ZVI reactor, pH was desirably controlled in the range of 5.5-6.5, and concurrently <0.5 mg L⁻¹ dissolved oxygen was consistently maintained during the longer-term of dissolved oxygen ZVI treatment system. The combination of ZVI treatment and CO₂ gas bubbling reached up to 35% removal of nitrate and passivation on the surface of ZVI was prevented by diffusing CO₂ gas. Soluble Fe (II) concentration of mixed liquor in the ZVI reactor ranged between 0.2 and 7.8 mg L⁻¹, and Fe (II) dissolved in the ZVI treated water was almost completely removed by subsequent aeration. The overall result shows that the novel ZVI treatment system is significantly promising to remove nitrate in groundwater and therefore to meet the regulatory limit for drinking water.

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기사명 저자명 페이지 원문 목차
Phytoremediation of soil contaminated with heavy metals using Brassica napus 박지영, 김경웅, 김주용 pp.9-17

Estimation of Soil Erosion and Sediment Yield from Mine Tailing Dumps using GIS : A Case Study at the Samgwang mine, Korea 김성민, 최요순, 서장운, 오승찬, 박형동, 윤석호 pp.1-8

Effects of the Imbibitional Flow of Steam on Oil Recovery from Carbonate Reservoirs 김주형, 성원모, 박혜민, 서준우, 이근상 pp.19-25

Treatment Efficiency of Acid Mine Drainage by Ho-Nam Coal Mine Passive Treatment System 지상우, 유경근, 임길재, 정영욱 pp.27-32

Redox reaction of Fe(0) with As(V) sorbed onto goethite coated sand under the anoxic conditions 장세건, 김선준, 이상훈, 전병훈, 최재영 pp.33-43

Mine Waste Water Management and Treatment in Coal Mines in Vietnam Tran Mien pp.67-71

A New Approach to the Recycling of Gold Mine Tailings using Red Mud and Waste Limestone as Melting Fluxes 김수경, 손정수, 양동효, S. V. Rao, 남철우, 이강인 pp.45-50

Petroleum Hydrocarbons and Trace Metals Loads in the Mangrove Oyster(Crassostrea rhizophorae) from the Qua Iboe Estuary and Adjoining Creeks, in Nigeria Edu Inam, Joseph Essien, Basil Ita, Helen Etuk, 김경웅 pp.51-60

Removal of Nitrate from Groundwater using ZVI Treatment System Combined with Continuous CO2 gas Bubbling 안용태, 김현철, 조동완, Reda A.I. Abou-Shanab, 전병훈 pp.61-66

Use of Coal Combustion By-Products in Mine Reclamation : Review of Case Studies in the USA Jeffrey Skousen, Paul Ziemkiewicz, 양재의 pp.73-85

참고문헌 (22건) : 자료제공( 네이버학술정보 )

참고문헌 목록에 대한 테이블로 번호, 참고문헌, 국회도서관 소장유무로 구성되어 있습니다.
번호 참고문헌 국회도서관 소장유무
1 The iron oxides: structure, properties, reactions, occurrences and uses. 미소장
2 Nitrate contamination in private wells in rural Alabama, United States 미소장
3 Highly effective electrodialysis for selective elimination of nitrates from drinking water 미소장
4 Characteristics of nitrate reduction by zero-valent iron powder in the recirculated and CO2-bubbled system 미소장
5 Modeling a novel ion exchange process for arsenic and nitrate removal 미소장
6 Removal of Nitrate from Water by Adsorption onto Zinc Chloride Treated Activated Carbon 미소장
7 Nitrate removal in zero-valent iron packed columns 미소장
8 Transformation of ferrihydrite in the presence or absence of trace Fe(II): The effect of preparation procedures of ferrihydrite 미소장
9 Fluidized zero valent iron bed reactor for nitrate removal 미소장
10 Nitrate reduction by metallic iron 미소장
11 Pressurized CO2/zero valent iron system for nitrate removal 미소장
12 Effects of water characteristics on nitrate reduction by the Fe0/CO2 process 미소장
13 Ammonia stripping as a pretreatment for landfill leachate 미소장
14 Nitrate removal with reverse osmosis in a rural area in South Africa 미소장
15 Treatment of Aqueous Nitrate by Zero Valent Iron Powder in the Presence of CO2 Bubbling 미소장
16 Nitrates in groundwater in the southeastern USA 미소장
17 Aeration to degas CO2, increase pH, and increase iron oxidation rates for efficient treatment of net alkaline mine drainage 미소장
18 Bio-reduction of nitrate from groundwater using a hydrogen-based membrane biofilm reactor 미소장
19 The role of clay minerals in the reduction of nitrate in groundwater by zero-valent iron 미소장
20 Microbial Polysaccharides Template Assembly of Nanocrystal Fibers 미소장
21 Nitrate Removal From Drinking Water—Review 미소장
22 The Iron Oxides 미소장

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