water supply

This study conceptually assesssed household resilience to water supply and sanitation deficit in Nigeria. It expressed water supply and sanitation situation in Nigeria in terms of historical background and organisation structure of water supply and sanitation and highlighted cases of water supply and sanitation across states and geopolitical zones to reflect the precarious water supply and sanitation condition in Nigeria.

At the present stage, detailed plans of rural settlements should include areas where water intake wells, pumping stations, and treatment facilities can potentially be located.Otherwise, when preparing project documentation, there is often a problem with non-compliance with sanitary zones of buildings, construction in cramped conditions.

The concentration of total iron is one of the main physicochemical indicators of the safety and quality of tap water. The standard amount of the concentration of common iron in tap water is not more than 0.2 mg/dm3. In some cases, due to specific natural conditions and technology for drinking water preparation/treatment, this number may be increased to 1.0 mg/dm3. Excess iron concentration in the water adversely affects the skin, blood composition, etc. Prolonged consumption of water with high iron concentration leads to liver disease, causes allergic reactions, etc.

The article describes the stages of professional formation and scientific priorities of Professor Dariusz Kowalski - completed schools, acquired degrees and professional experience, as well as a list of the most important publications. The following is a description of the main scientific research results and possibilities for their practical application.

Comparative assessment of corrosion stability of mild steels 3, 20 and 08KP in tap water was conducted. Similar corrosion behavior of these steels was shown by weight loss, linear polarization resistance and polarization curves techniques both for pretreated and corroded surfaces. The discrepancy of the results obtained with the LPR and weight loss techniques was found out and its possible reasons were discussed.