2011 Spring Meeting & 7th Global Congress on Process Safety
(108e) A Study of the Next Generation Water Conditioning Unit to Fulfill Iraqi Needs for Drinkable Water
Author
One of the major problems in our country Iraq at the present time is water pollution and the unsuitability of drinking water. Serious efforts have been spent in order to overcome this serious problem. It is required to provide high drinking water solution that complies with the world drinking water standards (WHO) and accepted by the water health organization in order to replenish houses, factories, schools, and hospitals…..etc.
Ongoing research into new technologies is required to develop less expensive water treatment processes without sacrificing water quality. The process of disinfection is one of the areas that needs to be examined continuously to find more efficient disinfectants against presently known micro-organisms and the potentially harmful ones that are discovered.
In addition, growing concerns about the use of chlorine with its potentially harmful by-products places greater emphasis on the need for water utilities to investigate water disinfection alternatives to chlorination. A seemingly advanced technology, new to Western practice but utilized for some time now in many of the Eastern bloc states, has received much acclaim of late. The general concept is that of an electrolytic cell and electrolyte used to generate amounts of AnoFluid and CathoFluid, said to contain a variety of oxidants, the mixture of which is referred to as "mixed oxidants". The oxidants include amongst others, chlorine, chlorine dioxide, hydrogen peroxide, ozone and hydroxyl radicals. This technology is purported to present the following advantages over present disinfection methods:
- The efficiency of the oxidants produced is, by mass, higher than that of chlorine;
- Oxidant mixtures can be produced on-site using only electricity and sodium chloride;
- Oxidant concentration and composition may be adjusted according to specific needs; and
- A residual may be maintained in product water.
Although there is no record of the large-scale application of this technique in water disinfection, it could be considered as a means of primary disinfection on small water treatment plants and to augment depleted disinfectant concentrations in distribution systems. Chlorination in various forms is regarded as a reliable, cost-effective method for disinfecting water for drinking purposes. It is used on small, remote plants and on large-scale sophisticated drinking water treatment plants. However in remote areas the application of chlorine presents problems where difficulties such as the following, may exist. These and other reasons may give impetus into investigating other disinfectants.
- Distance from the place of chlorine manufacture;
- Transport and delivery schedules are unreliable or non-existent;
- Lack of sufficient expertise on the proper dosing of chlorine (especially of gaseous chlorine);
- The quality of chlorine gas obtained causes problems at the point of dosing.
Definitive research is required into the evaluation of the application of mixed oxidant technology for the treatment of drinking water, especially for use in remote areas as a primary disinfectant.
An explanation of the LVPG Generator treatment technology, description of the characteristics and common constituents of water, detailed information relating the best available technology (BAT), and currently available treatment technologies will be identified and described thoroughly. A ChemCad simulation software technique has been employed in order to simulate the LVPG process.
The disinfection process has been examined and tested in the laboratory and showed positive results. The solution employed (AnoFluid) killed the bacteria within 1 minute (Solution and Plate) in controlled environment. The result is clear, clean, non-contaminated water with no chemical residues.