To create a Local Agenda 21-process, is a very challenging task, which requires knowledge, political will, and political clout. The experience that we hitherto have in Sweden, shows the importance of commitment to the work, within as well the political as the administrarive leadership in the municipalky. Water is, in many ways, an inregrating factor […]
Författare
PEDER HJORTH
Nyckelord (Keyword)
Vatten, naturresurser, bärkraftig urveckling, kommunal planering, vattenförsörjning, avlopp, avfall, integration, koordination, konsultation
Årgång
1995
Nummer
4
Utgåva
This works presents a critical review of existing models to evaluate eutrophication consequences related ro emissions from fish cage farms in lakes. Existing models ofthe Vollenweider-type, i.e., models based only on formation on tributary input of toial-P and theoretical lake water retention lime (or related lake morphometrical facrors) cannot be used to predict and/or evaluate […]
Författare
LARS HÅKANSON och TORBJÖRN JOHANSSON
Nyckelord (Keyword)
Lakes, fish farms, eutrophicarion, models, uncertainty tesrs, predictions, mass-balances.
Årgång
1995
Nummer
4
Utgåva
This paper presents a new technology for the treatment of humus contaminated river warers, using ferri/flocculation and floating sedimentarions tanks, insralled in a lakewater body, connected to ihe main water resevoire of the Vaasa potable water works, in Finland. The capacity ofthis plant is 1 000 m3/h. It started in the summar 1995. Vaasa water […]
Författare
RUBEN HERRGÅRD, och KARL DUNKERS,
Årgång
1995
Nummer
4
Utgåva
In order to be able to determine wheiher or not a wastewarer treatment method is the best one in a given case, it would be beneficial if the treatment method could be evaluated both with respect to cost efficiency (cost in relation to receiving water improvemenr) as well as sustainability (consumption ofraw materials and energy). […]
Författare
HALLVARD ÖDEGAARD
Nyckelord (Keyword)
Wastewater treatment, cost efficiency, sustainability.
Årgång
1995
Nummer
4
Utgåva
A decisive factor in the operation of an enhanced biological phosphorus removal (EBPR) process is th availability of readily biodegradable organics in the influent. Especially important is the amount of volatile fatty acids, VFA. At the WWTP in Helsingborg, Öresundsverket, full-scale EBPR-tests in two of the four trains are running. Hydrolysis of primary sludge in […]
Författare
LARS-ERIK JÖNSSON
Nyckelord (Keyword)
VFA, EBPR, analysis procedure, titradon.
Årgång
1995
Nummer
4
Utgåva
Anaerobic fixed-film biological processes for wastewater treatment have been used for many years. Still, the influence of the support medium is not fully understood and contradictory statements are often found in the literature. The reason for this is the complexity and variation of the organic material normally found in the wastewater to be treated and […]
Författare
ERIK SÄRNER
Nyckelord (Keyword)
anaerobic filter, media configurarion, specific surface, media micro-structure
Årgång
1995
Nummer
4
Utgåva