The removal efficiency of iron from ground-water for drinking water production is related to iron physico-chemical forms (species). An ion-exchange method was suggested for iron speciation analysis in groundwater. This method is based on the sorption of negatively charged iron species, mainly organically bound iron, on to DEAE cellulose anion-exchange resin, and positively charged species, […]
Författare TALIS JUHNA, BAIBA GULBE, MARIS KLAVINS
A monitoring program for stormwater quality from the Malmö-Sturup airport was ratified by the regional authority in 1989. The dominating source of water pollution from the airport is the chemicals monopropy-lenglycol, urea and potassium acetate, used during winter season for deicing of the aircraft’s and runways. The monitoring programme included 5 sampling stations with monthly […]
The concept of coliforms as faecal pollution indicator organisms have been used to evaluate the water quality and the efficiency of the water treatment for about 100 years with varying degrees of success. Water borne diseases are caused by wider sorts of micro-organisms. The importance of the viruses and protozoa are increasing. These micro-organisms have […]
Författare HUSAM S. JABUR, JONAS MÅRTENSSON, KENNETH M. PERSSON
Nyckelord (Keyword) indicator organisms, water quality, algae, bacteria, virus
Increased demand for storm water treatment has created development in filtration technologies for storm water. Manufacturers are using different filtration facilities and different filter materials. Therefore there is a need – from manufacturers, universities and government organisations – to put together current knowledge and to clarify important aspects concerning constructed filter systems. The first part […]
Författare CARINA FÄRM
Nyckelord (Keyword) Filtration, gully-pot, heavy metals, pine bark, road runoff, sorbent, sorption, storm water.
Acidity and excess amount of iron and manganese are the most common problems in Finnish groundwater demanding water treatment measures. Also, groundwater in Finland is usually soft. Biological methods, such as a combination of dry filtration and slow filtration, are commonly used. This method removes iron and manganese from water and increases the pH-level somewhat, […]
Författare JARMO SALLANKO, JYRKI RÖPELINEN, RIITTA KAMULA
Public water and sanitation service (the VA service) have since the end of the 19th century been managed by municipalities in Sweden. However, as a part of the influence from the globalisation discussion this model has been challenged in recent years. For instance, in 2000 the German-based Eon company bought the assets of the Norrköping […]
Författare JAN-ERIK GUSTAFSSON
Nyckelord (Keyword) Water supply, sanitation, deregulation, privatisation, Sweden
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