Corpus ID: 9251128

EFFECT OF ELECTRICAL CONDUCTIVITY ( EC ) ON GROWTH PERFORMANCE OF DUCKWEED AT DUMPSITE LEACHATE

@inproceedings{Iqbal2017EFFECTOE,
  title={EFFECT OF ELECTRICAL CONDUCTIVITY ( EC ) ON GROWTH PERFORMANCE OF DUCKWEED AT DUMPSITE LEACHATE},
  author={Jamshaid Iqbal and Maryam Saleem and Atif Javed},
  year={2017}
}
Two batch experiments were conducted during the months of June-July (summer) and September-October (fall) to determine the effect of Electrical Conductivity (EC) on nutrient and COD removal & uptake efficiency and growth of duckweed (Lemna minor) at leachate with various EC levels (500-3,000 μS cm -1 ) under the natural climatic conditions of Islamabad, Pakistan. Maximum removal rates (mg m -2 day -1 ) of TKN (175.6±0.7), NH4-N (124±0.4), TP (92.4± 0.1), o-PO4 3-P (31.8 ± 1.2) and COD (3,660±9… Expand

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References

SHOWING 1-10 OF 27 REFERENCES
Influence of Salinity on Duckweed Growth and Duckweed Based Wastewater Treatment System
The growth of duckweed (Spirodela polyrrhiza) was investigated in an outdoor batch system under 15 different conductivities ranging from 200 μS/cm to 3000 μS/cm with average 110 μmol/m2 daylightExpand
Performance of duckweed-covered sewage lagoons—II. Nitrogen and phosphorus balance and plant productivity
Abstract Laboratory scale experiments were performed in a non-continuous batch reactor system with 0.8 to 41.2 l with domestic sewage exposed to constant light intensity, temperature and humidity.Expand
Landfill leachate treatment using sub-surface flow constructed wetland by Cyperus haspan.
TLDR
The study proved that leachate could be treated effectively using subsurface constructed wetlands with C. haspan plant and the significance of removal was manifested in the quality of the effluent obtained at the end of the study. Expand
Effect of total ammonia nitrogen concentration and pH on growth rates of duckweed (Spirodela polyrrhiza)
Abstract The use of duckweed in domestic wastewater treatment is receiving growing attention over the last few years. Duckweed-based ponds in combination with anaerobic pre-treatment may be aExpand
Advantages and limitations of duckweed-based wastewater treatment systems
In order to find a reliable, simple and cost-effective small wastewater treatment system, an experimental research programme on duckweed-based treatment systems was carried out. In spite of theExpand
NUTRIENT REMOVAL FROM SWINE LAGOON LIQUID BY LEMNA MINOR 8627
TLDR
Pre–acclimation of the duckweed with swine lagoon liquid could accelerate the start–up of a duckweed system to remove nutrients from the wastewater by preventing the lag phase of duckweed growth. Expand
Physico-chemical removal of iron from semi-aerobic landfill leachate by limestone filter.
TLDR
Investigation of the suitability of limestone to attenuate total iron (Fe) from semi aerobic leachate at Pulau Burung Landfill Site in Penang, Malaysia and batch study on the Fe isotherm indicated that limestone is potentially useful as an alternativeLeachate treatment system at a relatively low cost. Expand
The influence of duckweed species diversity on biomass productivity and nutrient removal efficiency in swine wastewater.
TLDR
The duckweed in mixture had higher biomass and nutrient removal efficiency than those in monoculture in swine wastewater and the ability of L. punctata C3 and L. minor C2 had the greatest nutrient removal rate and the highest biomass. Expand
Growing Lemna minor in agricultural wastewater and converting the duckweed biomass to ethanol.
TLDR
Duckweed (Lemna minor) was grown in swine lagoon wastewater and Schenk & Hildebrandt medium and the rapid accumulation of starch in duckweed biomass was triggered by nutrient starvation or growing in dark with addition of glucose. Expand
Investigation of landfill leachate toxic potency: an integrated approach with the use of stress indices in tissues of mussels.
TLDR
Leachate-exposed mussels showed a significant inhibition of acetylcholinesterase activity, increased levels of nuclear abnormalities, as well as increasedlevels of metallothionein, superoxide anion and lipid peroxides (in terms of malondialdehyde equivalents) in each tissue tested. Expand
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