Removal of ammonium, iron and manganese from potable water in biofiltration units: a review

2013 ◽  
Vol 88 (5) ◽  
pp. 751-773 ◽  
Author(s):  
Athanasia G. Tekerlekopoulou ◽  
Stavros Pavlou ◽  
Dimitrios V. Vayenas
Keyword(s):  
Potable Water ◽  
Ammonium Iron ◽  
Iron And Manganese

A full-scale trickling filter for the simultaneous removal of ammonium, iron and manganese from potable water

2010 ◽  
Vol 85 (7) ◽  
pp. 1023-1026 ◽  
Author(s):  
Athanasia G. Tekerlekopoulou ◽  
Panagiotis G. D. Papazafiris ◽  
Dimitris V. Vayenas
Keyword(s):  
Potable Water ◽  
Full Scale ◽  
Simultaneous Removal ◽  
Trickling Filter ◽  
Ammonium Iron ◽  
Iron And Manganese

Methodological Foundation and Assessment of Artesian Water Treatment Technology in the Republic of the Union Of Myanmar

2021 ◽  
Vol 25 (8) ◽  
pp. 34-39
Author(s):  
Maung Lin Maung ◽  
Htet Aung ◽  
Saw Thurain ◽  
D.V. Parusov ◽  
G.G. Kagramanov ◽  
...  
Keyword(s):  
Potable Water ◽  
Water Production ◽  
Treatment Technology ◽  
Underground Waters ◽  
Methodological Foundation ◽  
Technical And Economic Analysis ◽  
Drinking Water Production ◽  
The Republic ◽  
High Degree ◽  
Iron And Manganese

The analysis of the compositions of artesian waters from the Republic of the Union of Myanmar as a source of potable water production is carried out. The underground waters are characterized by high degree of hardness and content of iron and manganese. Total dissolved solids (TDS) concentration corresponding thus to the class of brackish water. Three potential approaches to the development of drinking water production technology are proposed. Technical and economic analysis of the specific operating costs for potable water from artesian resources of Republic of the Union of Myanmar was carried out and the optimal technological schemes of treatment plants were determined.

Tidal flushing of ammonium, iron and manganese from inter-tidal sediment pore waters

1997 ◽  
Vol 58 (1-2) ◽  
pp. 203-211 ◽  
Author(s):  
M. Caetano ◽  
M. Falcão ◽  
C. Vale ◽  
M.J. Bebianno
Keyword(s):  
Pore Waters ◽  
Tidal Flushing ◽  
Ammonium Iron ◽  
Iron And Manganese

Characterisation of materials causing discolouration in potable water systems

2004 ◽  
Vol 49 (2) ◽  
pp. 27-32 ◽  
Author(s):  
A. Seth ◽  
R. Bachmann ◽  
J. Boxall ◽  
A. Saul ◽  
R. Edyvean
Keyword(s):  
Potable Water ◽  
Zinc Concentration ◽  
Water Systems ◽  
Pipe Material ◽  
Source Water ◽  
Customer Complaints ◽  
Hydraulic Regime ◽  
Water Companies ◽  
The University ◽  
Iron And Manganese

Discoloured water is one of the main causes of customer complaints received by UK water suppliers. Flushing is recognised as a means of preventing red water events by mobilising material with the potential to cause discolouration. The understanding of the mechanisms and materials causing discolouration is limited. It is therefore necessary to characterise the materials mobilised by flushing, _which are responsible for discolouration. The University of Sheffield and two UK water companies embarked on an in-depth programme of monitoring mains flushing. The programme involves collecting discrete samples during flushing of pipes of differing materials, diameters, age, source water and hydraulic regime. The results show iron to be the dominant material mobilised irrespective of pipe material. All samples indicate a direct correlation between turbidity, iron and manganese, and to a lesser extent with metals lead, copper, aluminium and zinc. Concentration of metals mobilised is independent of pipe material, diameter or age.

Ammonia, iron and manganese removal from potable water using trickling filters

Desalination ◽  
2007 ◽  
Vol 210 (1-3) ◽  
pp. 225-235 ◽  
Author(s):  
A.G. Tekerlekopoulou ◽  
D.V. Vayenas
Keyword(s):  
Potable Water ◽  
Trickling Filters ◽  
Manganese Removal ◽  
Iron And Manganese

Rapid start-up of biofilters for removal of ammonium, iron and manganese from ground water

2004 ◽  
Vol 53 (7) ◽  
pp. 509-518 ◽  
Author(s):  
Tamara Štembal ◽  
Marinko Markić ◽  
Felicita Briški ◽  
Laszlo Sipos
Keyword(s):  
Ground Water ◽  
Start Up ◽  
Ammonium Iron ◽  
Iron And Manganese

Colloidal systems in soils

1994 ◽  
Vol 52 ◽  
pp. 64-65
Author(s):  
J. Thieme ◽  
J. Niemeyer ◽  
P. Guttman
Keyword(s):  
Clay Minerals ◽  
Polymeric Materials ◽  
Spatial Arrangement ◽  
High Specific Surface Area ◽  
Turnover Rates ◽  
Colloidal Systems ◽  
Chemical Conditions ◽  
Aggregation Phenomena ◽  
Iron And Manganese ◽  
Soil Colloids

In soil science the fraction of colloids in soils is understood as particles with diameters smaller than 2μm. Clay minerals, aquoxides of iron and manganese, humic substances, and other polymeric materials are found in this fraction. The spatial arrangement (microstructure) is controlled by the substantial structure of the colloids, by the chemical composition of the soil solution, and by thesoil biota. This microstructure determines among other things the diffusive mass flow within the soils and as a result the availability of substances for chemical and microbiological reactions. The turnover of nutrients, the adsorption of toxicants and the weathering of soil clay minerals are examples of these surface mediated reactions. Due to their high specific surface area, the soil colloids are the most reactive species in this respect. Under the chemical conditions in soils, these minerals are associated in larger aggregates. The accessibility of reactive sites for these reactions on the surface of the colloids is reduced by this aggregation. To determine the turnover rates of chemicals within these aggregates it is highly desirable to visualize directly these aggregation phenomena.

Determination of natural radionuclides in waste generated in the potable water treatment plants of the Zona da Mata of the state of Pernambuco- Brazil

2019 ◽  
Vol 7 (2A) ◽  
Author(s):  
Adriana Muniz De Almeida Albuquerque
Keyword(s):  
Water Treatment ◽  
Potable Water ◽  
Natural Radionuclides ◽  
The United States ◽  
Radioactive Material ◽  
Human Consumption ◽  
Radiological Protection ◽  
Natural Occurrence ◽  
Water Treatment Plants ◽  
Potable Water Treatment

The water purification procedure aims to obtain a product appropriate for human consumption, minimizing the presence of contaminants and toxic substances present in the water. Among these contaminants, some radionuclides of natural origin, such as uranium, thorium and their descendants, have been identified. Studies have shown that the stages of purification are quite effective in removing the radionuclides contained in water. The removal is due to co-precipitation of the radionuclides with the suspended materials and the precipitated material is accumulated and characterized as a Technologically Concentrated Natural Occurrence Radioactive Material (TENORM) by the United States Environmental Protection Agency (USEPA). This residue can present significant levels of radioactivity and, when discarded in the environment without any treatment, can generate a problem of environmental impact and a risk to the health of the population. In this way, some gamma emitters of the series of U, Th and the K-40 were determined in the residues generated at the Potable Water Treatment Plants – PWTPs in six municipalities of Pernambuco. The results obtain corroborate the classification of the residues generated in the PWTPs as concentrators of the radioactive components contained in the water supplied to the system and reinforce the need for the release to the environment, which is the usual way of disposal of this waste, to be carried out only after considering the radiological protection standards established.

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