Browsing Norsk institutt for vannforskning by Title
Now showing items 3353-3372 of 8166
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Measuring and modelling the dynamic response of remote mountain lake ecosystems to environmental change: A programme of Mountain Lake Research - MOLAR. March 1996 - March 1997
(NIVA-rapport;3705, Research report, 1997)MOLAR is an extensive European Co-operative research project with 23 partners. It is founded within the European Commision Framework Programme IV: Environment and Climate with assistance from INCO: It is co-ordinated by ... -
Measuring riverine macroplastic: Methods, harmonisation, and quality control
(Peer reviewed; Journal article, 2023)River systems are a key environmental recipient of macroplastic pollution. Understanding the sources of macroplastic to rivers and the mechanisms controlling fate and transport is essential to identify and tailor measures ... -
Mechanical removal of macrophytes in freshwater ecosystems: Implications for ecosystem structure and function
(Peer reviewed; Journal article, 2021)Macrophytes are generally considered a nuisance when they interfere with human activities. To combat perceived nuisance, macrophytes are removed, and considerable resources are spent every year worldwide on this practice. ... -
Mechanisms for metal nodule formation on sediment surfaces of limed lakes
(NIVA-rapport;6875, Research report, 2015)The water chemical and biological effects of liming have been fairly well documented. One of the research projects revealed relatively large (up to 1-3 cm in diameter) metal nodules on the sediment surface of some of the ... -
Medvirkningsstrategi for arbeidet med EUs rammedirektiv for vann. Utkast desember 2004
(NIVA-rapport;4933, Research report, 2004)På oppdrag av direktoratsgruppa for implementeringen av vanndirektivet, ble et utkast til medvirkningsstrategi utarbeidet høsten 2004. Prosjektet ble gjennomført i samarbeid med en uformell arbeidsgruppe. Strategien ... -
Melamchi Water Supply Project Nepal Loan Appraisal Mission Report
(NIVA-rapport;4286, Research report, 2000)This is an appraisal of the Melamchi Water Supply Project in Nepal with special focus on the component earmarked for funding by NDF. The objective of the appraisal mission was to provide NDF with necessary information to ... -
Membrananlegg for humusfjerning - Avløpets sammensetning og betydning for resipient, Del 1
(NIVA-rapport;4043, Research report, 1999)Vestre Toten kommune har av Fylkesmannen i Oppland fått pålegg om analyseprogram for avløpet fra Skjellbreia Vannverk samt et biologisk undersøkelseprogram for resipienten Hunnselva, Skjellbreia Vannverk er Norges største ... -
Membrane bioreactors (MBRs): Activated sludge filterability and full-scale MBR functioning
(Journal article; Peer reviewed, 2013)Despite continuous developments in the field of MBR technology, membrane fouling together with the associated energy demand and related costs issues remain major challenges. The efficiency of the filtration process in an ... -
Membrane bioreactors - A review on recent developments in energy reduction, fouling control, novel configurations, LCA and market prospects
(Journal article; Peer reviewed, 2017)Membrane bioreactor (MBR) technology is considered a well-established, mature technology with many full-scale plants around the world treating municipal and industrial wastewater. However, membrane fouling and energy ... -
Membrane supported biofilm reactors, a litterature review
(NIVA-rapport;3573, Research report, 1996)Membrane supported biofilm reactor is a new technology for biological degredation of pollutants. The utilisation of mebranes as a support for biofilm growth may occure in treatment of several types of wastewater, as removing ... -
MENGDE OG SAMMENSETNING AV KOMMUNALT SLAM. KARTLEGGING AV FORHOLDENE I NORGE I 1973 OG 1983
(NIVA-rapport;0586, Research report, 1974)GRUNNLAGSMATERIALE ANGÅENDE SLAM BEARBEIDET PÅ GRUNNLAG AV SPØRRESKJEMAER TIL LANDETS KOMMUNER. INNHOLD AV ORGANISK STOFF, FOSFOR, NITROGEN OG TUNGMETALLER I SLAM. TABELLER OVER SLAMMENGDER OG SLAMVOLUMER I NORGE I 1973 ... -
Mengdemessig utvikling av algebegroing etter kalking - årsaker og effekter. Års- og datarapport for 1998, 1999 og 2000
(NIVA-rapport;4451, Research report, 2001)Prosjektet "Mengdemessig utvikling av algebegroing etter kalking - årsaker og effekter" ble initiert etter at det gjennom flere år var observert uforklarlig mye trådformede alger i mange vassdrag, både kalkede og ukalkede, ... -
Meråker gruvefelt - Vurdering av vannføring og forurensning
(NIVA-rapport;4304, Research report, 2000)De omfattende reguleringene av vassdragene i Meråker gruvefelt påvirker vannkvaliteten i deler av vassdragene i betydelig grad. Det er spesielt i nedre deler av Torsbjørka og i Stjørdalselva mellom Grønbergdammen og tilløpet ... -
Mercury and Water Quality Study. Impact of Gold Mining in Song Bung 4 Project Area, Central Vietnam
(NIVA-rapport;5283, Research report, 2007)The aim of this study is to elucidate any impact that the mining activity in the catchment of Song Bung River has on the water quality, sediment quality, as well as for the fish and the fish flesh quality in the mainstream ... -
Mercury concentration trend as a possible result of changes in cod population demography
(Journal article; Peer reviewed, 2017)Mercury (Hg) in Atlantic cod (Gadus morhua) is one of many parameters that are monitored through OSPAR's Joint Assessment and Monitoring Programme. Time series for cod in the Inner Oslofjord (Norway) go back to 1984. Until ... -
Mercury in air and soil on an urban-rural transect in East Africa
(Peer reviewed; Journal article, 2022)There are large knowledge gaps concerning concentrations, sources, emissions, and spatial trends of mercury (Hg) in the atmosphere in developing regions of the Southern Hemisphere, particularly in urban areas. Filling these ... -
Mercury in fish from Norwegian lakes: The complex influence of aqueous organic carbon
(Journal article; Peer reviewed, 2018)Mercury (Hg) concentrations in water and biota are often positively correlated to organic matter (OM), typically measured as total or dissolved organic carbon (TOC/DOC). However, recent evidence suggests that higher OM ... -
Mercury in terrestrial mosses in the vicinity of tne Norgips plant at Tørkop
(NIVA-rapport;5212, Research report, 2006)The Norgips plasterboard plant at Tørkop in Vestfold County, Norway, are now using industrial gypsum as a raw material in their production. This is a by-product from the cleaning of flue-gases from coal power plants. ... -
Mercury in the Barents region – River fluxes, sources, and environmental concentrations
(Peer reviewed; Journal article, 2023)Arctic rivers are receiving increased attention for their contributing of mercury (Hg) to the Arctic Ocean. Despite this, the knowledge on both the terrestrial release sources and the levels of Hg in the rivers are limited. ... -
Mercury in the submerged macrophytes Potamogeton crispus and Chara virgate from the brackish, industrial affected Gunneklevfjorden, southern Norway
(Journal article; Peer reviewed, 2016)Kvikksølv i krustjønnaks Potamogeton crispus og kransalgen Chara virgate i Gunneklevfjorden, en industripåvirket brakkvannsfjord i Norge. Total kvikksølv (Tot-Hg) og metylkvikksølv (Met-Hg) ble analysert månedlig fra mai ...