Results 11 to 20 of about 35,685 (305)
High Potential for Anaerobic Microbial Sulfur Oxidation in Oil Sands Tailings Ponds
The biogenic production of toxic H2S gas in sulfate-rich oil sands tailings ponds is associated with strong environmental concerns. Beside precipitation into sulfide minerals and chemical re-oxidation, microbial sulfur oxidation may catalyze sulfide re ...
Sebastian Stasik +2 more
doaj +3 more sources
High-Rate Oxidation Ponds: The Israeli Experience
The use of high rate oxidation ponds as means for wastewater reclamation and algal biomass production was extensively studied in Israel. The work started from laboratory scale facilities through outdoor miniponds, pilot plant ponds, field scale ponds and a full scale pond.
Y. Azov, G. Shelef
openaire +3 more sources
Toxicity of ammonia to algae in sewage oxidation ponds [PDF]
Ammonia, at concentrations over 2.0 mM and at pH values over 8.0, inhibits photosynthesis and growth of Scenedesmus obliquus, a dominant species in high-rate sewage oxidation ponds. Photosynthesis of Chlorella pyrenoidosa, Anacystis nidulans, and Plectonema boryanum is also susceptible to ammonia inhibition.
A, Abeliovich, Y, Azov
openaire +4 more sources
There are some sources of pollution of the groundwater such as the industrial, agriculture, domestic activities and the oxidation ponds that are considered collection points for waste disposal plants.
Enas E. Hussein +2 more
doaj +1 more source
Oxidation pond for municipal wastewater treatment [PDF]
This literature review examines process, design, and cost issues related to using oxidation ponds for wastewater treatment. Many of the topics have applications at either full scale or in isolation for laboratory analysis. Oxidation ponds have many advantages.
Butler, Erick +5 more
openaire +1 more source
Diffusive methane emissions from temperate semi-intensive carp ponds
Manuring and supplementary feeding are common practices used to sustain high fish production in temperate semi-intensive carp ponds. However, the low use efficiency of added nutrients and organic matter may cause carp ponds to be ‘hot spots’ of methane ...
Rutegwa, M +6 more
doaj +1 more source
Ecological spectrums of heterotrophic flagellates (protista) in water bodies of ukrainian polissya area [PDF]
Dependence of 26 heterotrophic flagellate species development in central part of Ukrainian Polissya area from operating pH and concentrations of dissolved organic matter and oxygen in the waters is considered.
Dovgal, I. V., Shevchuк, S. Yu
core +1 more source
Fish growth enhances microbial sulfur cycling in aquaculture pond sediments
Summary Microbial sulfate reduction and sulfur oxidation are vital processes to enhance organic matter degradation in sediments. However, the diversity and composition of sulfate‐reducing bacteria (SRB) and sulfur‐oxidizing bacteria (SOB) and their ...
Keke Zhang +10 more
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The accumulation of organic matter (OM) in the sediment of aquaculture ponds is a potential threat for aquaculture ecosystems and the surrounding environment.
Y Hou, B Li, J Luo, C Zhang, J He, J Zhu
doaj +1 more source
Municipal wastewater treatment with pond technology : historical review and future outlook
Facing an unprecedented population growth, it is difficult to overstress the assets for wastewater treatment of waste stabilization ponds (WSPs), i.e. high removal efficiency, simplicity, and low cost, which have been recognized by numerous scientists ...
Goethals, Peter, Ho, Long Tuan
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