SYNPUNKTER PÅ MIKROORGANISMER SOM INDIKATORER I VATTENFÖRSÖRJNINGEN / Comments regarding microorganisms as indicators in water supply
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 no […]
REVIDERAT KONTROLLPROGRAM FÖR DAGVATTEN VID MALMÖ-STURUPS FLYGPLATS / Revised monitoring programme for storm water quality at the Malmö-Sturup airport
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 […]
SPECIATION OF IRON IN GROUNDWATER FROM AREAS OF HUMIC WATERS BY AN ION-EXCHANGE METHOD
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, […]
EVALUATION OF AN EJECTOR-BASED AIR SATURATION SYSTEM FOR DISSOLVED AIR FLOTATION
The saturator system is the most cost consuming part in DAF operation and optimization of the used methods is of great economical interest. An ejector-based system for use in a pilot plant was evaluated with novel air collecting methods. Three ejectors with increasing size were examined and a relation between ejector water velocity and a […]
RAMDIREKTIVET OCH »ALLMÄNHETENS MEDVERKAN» – VAD GÄLLER FÖR VATTEN FÖRBUNDEN? / The Framework Directive, ”Public Participation” and Water Management Associations
Since the 1950s, different water management associations characterised by voluntariness are taking part in the Swedish water administration. Certain conditions prevail regarding the co-ordinated recipient monitoring and due to the Act on water associations. The act strictly regulates the purpose with this kind of association; to promote appropriate utilisation of watercourses. Those actors given prior […]
VATTEN PÅ BRYGGERI Bryggeriernas särskilda kvalitetskrav / Brewery water. Special quality demands
Some of the brewing industry’s special quality demands – in addition to current legislation – on the water raw material are briefly discussed. To avoid oxidative quality deterioration of the products, the content of oxygen as well as compounds capable of catalysing oxidation must be kept at a very low level. Similarly, residual chlorine must […]
UTVINNING AV FOSFOR VID SUPERKRITISK VATTENOXIDATION AV AVLOPPSSLAM / Recovery of phosphorus in supercritical water oxidation of sewage sludge
A theoretical and experimental study has been performed to give a basis for recovery of phosphorus and Other products from sewage sludge and ash with application to Henriksdal wastewater treatment plant (Hultman et al., 2002). Special attention is given in this article on the use of supercritical water oxidation followed by phosphorus recovery (Aqua Reci). […]
HAMMARBY SJÖSTAD – MILJÖFORESTÄLLNINGAR OCH VERKLIGHETER / Hammarby Sjöstad – residents’ environmental perceptions and realities
Residents’ daily routines and the construction of residential buildings are important ingredients in a strive towards a sustainable society. City councils, building companies, and infrastructure service providers develop ways to conserve evergy and water. However, increasingly recognized is the importance of the residents’ willingness to contribute to achieving the environmental goals. Here is presented an […]
SAMORDNAD RECIPIENTKONTROLL (SRK) – GÄLLER BÅDE LAND OCH VATTEN / Monitoring programmes for Swedish waste receiving waters is concerned with both land and water
The monitoring programmes for Swedish waste receiving waters are designed according to conditions existing 40-50 years ago. Today there is a strong need to renew these programmes. They don’t include information about changes in primary pollution load, which means that cause and effect can’t be studied. In addition, a lot of unnecessary monitoring is performed […]
FORSKNINGENS BETYDELSE FÖR MILJÖARBETET VID KUST OCH HAV- ERFARENHETER FRAN SUCOZOMA-PROGRAMMET / The importance of science for environmental work on the coast and the sea – experience gained from the SUCOZOMA programme
Research on sustainable management of the coastal zone is motivated by the fierce competition for natural resources between different categories of users along the coast. Knowledge-based management will be able to base its decision-making on information representing the complex nature of the coast. The research carried out in the research programme Sustainable Coastal Zone Management […]