Life cycle analysis of two Hungarian drinking water arsenic removal technologies

2013 ◽  
Vol 14 (1) ◽  
pp. 48-60 ◽  
Author(s):  
C. J. Jones ◽  
D. Laky ◽  
I. Galambos ◽  
C. Avendano ◽  
V. L. Colvin
Keyword(s):  
Drinking Water ◽  
Life Cycle ◽  
Life Cycle Analysis ◽  
Arsenic Removal ◽  
Filter Material ◽  
Individual Treatment ◽  
Adsorption Technology ◽  
Treatment Technologies ◽  
Removal Technologies ◽  
Filtration Technology

Determining a technology's merit as a solution to Hungarian drinking water arsenic contamination goes beyond technical concerns: environmental and economic aspects also play very important roles. In an effort to address the current arsenic drinking water requirements in Hungary, life cycle analysis (LCA) methodology was applied on two example arsenic removal technologies, coagulation-filtration and adsorption, from cradle to grave. A distribution of 500 m3/day was assumed, along with a range of possible operation boundary conditions modelled solely for As treatment. Nine out of 10 considered impact categories tended to favour coagulation-filtration, however realistic variations in water chemistry and product characteristics led to some overlap of their environmental impact. Unlike other studies on water systems, electricity did not have a large direct impact; this was due to the focussed nature of this study on individual treatment technologies rather than an entire water supply system. Regeneration of the adsorption technology filter material was also observed to require nearly the same mass of materials for one regeneration as what was needed to support the coagulation-filtration technology for an entire year. Hazardous waste was surprisingly not reduced for adsorption compared to coagulation-filtration due to prefiltration requirements and an extra regeneration, even though adsorption shifts some of the environmental burden to the production phase. Additionally, cost analysis observes that coagulation-filtration is the cheaper of the two technologies; its highest cost is that of waste disposal, while the highest single expense modelled is that of the adsorption media cost.

scholarly journals Manganese Removal Status by Arsenic Removal Technologies Available in Bangladesh: Manganese Removal Treatment by Sodium Hypochlorite

1970 ◽  
Vol 46 (3) ◽  
pp. 291-296
Author(s):  
S Siraj ◽  
AI Kazi ◽  
S Ahmed ◽  
MA Akbor ◽  
A Ahsan
Keyword(s):  
Drinking Water ◽  
Arsenic Removal ◽  
Field Testing ◽  
Well Water ◽  
Limit Set ◽  
Safe Drinking Water ◽  
Environmental Technology ◽  
Manganese Removal ◽  
Removal Technologies ◽  
Chlorine Oxidation

In addition to arsenic, the groundwater in Bangladesh is often found to be contaminated with manganese whose permissible limit set by WHO being 400 ppb in drinking water. Since most arsenic removal technologies (ARTs) are designed to remove As and not to remove Mn, during field testing and verification of performance of ARTs under the Bangladesh Environmental Technology Verification-Support to Arsenic Mitigation (BETV-SAM) project of BCSIR, it has been found that only the Sono technology using Fe0 as arsenic removal medium which can also remove Mn to produce Mn safe drinking water but others such as Alcan, Read-F household, Sidko, Nelima, Shawdesh cannot. During field testing of these technologies under the BETV-SAM project, it has been attempted to treat Mn by a traditional chlorine oxidation method to produce Mn safe drinking water. Concentrations of dissolved As (T), As (III), Fe, Mn and pH in the considered well water for manganese treatment were in ranges of 125 - 1247 ppb, 116 - 1127 ppb, 1.40 - 15.5 ppm, 505 - 2245 ppb and 7.0 to 7.5, respectively. The required chlorine dose and time for treatment of manganese in 20 L water have been found to be 6.2 - 12.4 ppm and 1 - 2 h, respectively. Keyword: Arsenic; Manganese; ART; Verification; Chlorine; Iron. DOI: http://dx.doi.org/10.3329/bjsir.v46i3.9033 BJSIR 2011; 46(3): 291-296

A Field Based Evaluation of Household Arsenic Removal Technologies for the Treatment of Drinking Water

2002 ◽  
Vol 23 (12) ◽  
pp. 1385-1404 ◽  
Author(s):  
D. Sutherland ◽  
P. M. Swash ◽  
A. C. Macqueen ◽  
L. E. McWilliam ◽  
D. J. Ross ◽  
...  
Keyword(s):  
Drinking Water ◽  
Arsenic Removal ◽  
Removal Technologies

scholarly journals Comparison of Electrocoagulation Process and Other Treatment Technologies in Fluoride Removal from Groundwater

2019 ◽  
Vol 2 (3) ◽  
pp. 1275-1282
Author(s):  
Benan Yazici Karabulut ◽  
Ayse Dilek Atasoy
Keyword(s):  
Drinking Water ◽  
Ion Exchange ◽  
Fluoride Removal ◽  
The World ◽  
Effective Technology ◽  
Electrocoagulation Process ◽  
Treatment Technologies ◽  
As Adsorption ◽  
Removal Technologies ◽  
Water Fluoride

Groundwater is one of the most important natural resources in the world and plays a very important role in the supply of drinking water. Fluoride is probably one of the most common groundwater pollutants in the world for various reasons (structure of soil and rocks, etc.). The concentration of fluoride in groundwater above 1.5 mg/L begins to pose some risks to human health. Various conventional techniques such as adsorption, ion exchange, reverse osmosis, nanofiltration, precipitation have been developed for the removal of fluoride from water. However, they have several limitations, such as post-treatment re-treatment, less efficiency and higher installation costs. The electrocoagulation process is an effective technology for fluoride removal within conventional techniques. In this study, fluoride removal technologies are emphasized, and the studies done in this field are examined. The aim of this study is to investigate the advantages of electrocoagulation method in fluoride removal and to compare electrocoagulation process with other treatment technologies.

scholarly journals Removal of Arsenic -¨A Silent Killer¨ in the Environment by Adsorption Methods

2021 ◽  
Author(s):  
Ashok Kumar ◽  
Kaman Singh ◽  
Utkarsh Dixit ◽  
Rayees Ahmad Bhat ◽  
Satya Prakash Gupta
Keyword(s):  
Drinking Water ◽  
Arsenic Removal ◽  
Aqueous System ◽  
Current Status ◽  
Organic Salts ◽  
Abnormal Growth ◽  
Removal Technologies ◽  
Public Water Systems ◽  
Health Organization ◽  
Removal Of Arsenic

Water is one of the most essential requirements for living being to survive because 70–80% of the mass of most living bodies consists of water and various mineral and organic salts . Water is also most important component of our environment. Large amount of water is used in various industries or commercial level or domestic level and finally effluent water is loaded with large amount of pollutants such as organic chemicals (surfactants, dyes, phenols etc.), inorganic hazardous heavy metals (As in present case) microbes (bacteria, fungi etc.) pollutants particulate etc. Arsenic is a natural metalloid chemical that may be present in groundwater and surface water gets polluted, hence, aquatic life of plants and animals is disturbed and cause abnormal growth and various diseases, hence, short term or long term changes occurs in ecosystem. Hence, treatment of wastewater is essentially required before discharge effluent wastewater into ponds or lagoons, drains and rivers. Arsenic is one such element that contaminates the environment as reported in several countries. The largest population at risk is in Bangladesh followed by India (West Bengal). Arsenic is familiar as silent killer because dissolved in water, it is colorless, odorless, and tasteless, yet consumption of relatively small doses of this element in its most toxic forms can cause rapid and violent death. It is a human carcinogen in water over a wide range of pH values, having harmful effects on both human health and environment, even at low concentration. Because of this effect, the World Health Organization (WHO) and the US Environmental Protection Agency (USEPA) set the arsenic standard for drinking water at .010 ppm to protect consumers served by public water systems. Ingestion only poses health problems if a dangerous amount of arsenic enters the body. Then, it can lead to cancer, liver disease, coma, and death. There is no effective treatment for arsenic toxicity. Only the removal of arsenic from aqueous system can prevent the toxicity. A great deal of research over recent decades has been done to lower the concentration of arsenic in drinking water and still there is a need to develop ecofriendly techniques. Existing major arsenic removal technologies include oxidation, adsorption, precipitation, coagulation and membrane separation. This book chapter presents a systematic description of current status of research in the area of arsenic removal from contaminated water and comparison of all technologies available with more emphasis on adsorption.

Arsenic Removal in Drinking Water—Impacts and Novel Removal Technologies

2005 ◽  
Vol 27 (1-2) ◽  
pp. 209-219 ◽  
Author(s):  
O. S. THIRUNAVUKKARASU ◽  
T. VIRARAGHAVAN ◽  
K. S. SUBRAMANIAN ◽  
O. CHAALAL ◽  
M. R. ISLAM
Keyword(s):  
Drinking Water ◽  
Arsenic Removal ◽  
Removal Technologies

Investigation of arsenic removal technologies for drinking water in Vietnam

2003 ◽  
pp. 459-469 ◽  
Author(s):  
Pham Hung Viet ◽  
Tran Hong Con ◽  
Cao The Ha ◽  
Hoang Van Ha ◽  
Michael Berg ◽  
...  
Keyword(s):  
Drinking Water ◽  
Arsenic Removal ◽  
Removal Technologies

scholarly journals An overview of main arsenic removal technologies

2018 ◽  
Vol 11 (2) ◽  
pp. 107-113 ◽  
Author(s):  
Ronald Zakhar ◽  
Ján Derco ◽  
František Čacho
Keyword(s):  
Drinking Water ◽  
Membrane Filtration ◽  
Arsenic Removal ◽  
Chemical Precipitation ◽  
Contaminated Water ◽  
The World ◽  
Removal Processes ◽  
Removal Technologies ◽  
High Concentrations ◽  
Exchange Membrane

Abstract Arsenic (As) is metalloid, naturally present in the environment but also introduced by human activities. It is toxic and carcinogenic and its exposure to low or high concentrations can be fatal to human health. Arsenic contamination in drinking water threatens more than 150 million peoples all over the world. Therefore, treatment of As contaminated water is of unquestionable importance. The present review begins with an overview of As chemistry, distribution and toxicity, which are relevant aspects to understand and develop remediation techniques. The most common As removal processes (chemical precipitation, adsorption, ion exchange, membrane filtration, phytoremediation and electrocoagulation) are presented with discussion of their advantages, drawbacks and the main recent achievements.

Process development for treatment of highly polluted groundwater including NOM and arsenic removal

2014 ◽  
Vol 9 (3) ◽  
pp. 409-416
Author(s):  
B. Pelivanoski ◽  
K. Pirke
Keyword(s):  
Drinking Water ◽  
Arsenic Removal ◽  
Process Development ◽  
World Health Organisation ◽  
World Health ◽  
Multiple Treatment ◽  
The World ◽  
Treatment Technologies ◽  
High Concentrations ◽  
Two Stages

One of the worst environmental problems facing humanity in regard to contamination in drinking water is arsenic. The World Health Organisation has set a standard 10 μg/l for arsenic in drinking water. Arsenic is a natural element that is present in many regions of the world. The groundwater can be heavily polluted in these areas, and often no other water sources are available. The case study presented here is situated in northern Serbia. The groundwater shows concentrations up to 135 μg/l with an average of 110 μg/l of arsenic. The additional high concentrations of natural organic matter, phosphates, dissolved methane, volatile organic carbon and ammonia boron and sodium further complicate the treatment. Different treatment technologies have been tested over the past decades but proved either inefficient or not economical. The pilot testing period started in September 2012 and ended in August 2013. The most stable and economical process was then further optimized and adjusted. The process comprises multiple treatment stages including stripping, precipitation, bio-filtration and two stages ion-exchange as well as partial reverse osmoses. The process design guaranteed outflow values defined according to the European directive 98/83/EC.

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