scholarly journals Removal of Refractory Dissolved Organic Matter from Secondary Treated Water of Rural Sewage Treatment Plant by Hybrid Constructed Wetland System with a Zeolite Substratum

2009 ◽  
Vol 32 (12) ◽  
pp. 647-653
Author(s):  
Takashi MATSUZAKI ◽  
Morihiro AIZAKI
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Constructed Wetland ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Treated Water ◽  
Wetland System

Oxidation of dissolved organic matter in the effluent of a sewage treatment plant using ozone combined with hydrogen peroxide (O3/H2O2)

2009 ◽  
Vol 149 (1-3) ◽  
pp. 311-318 ◽  
Author(s):  
Roberto Rosal ◽  
Antonio Rodríguez ◽  
José Antonio Perdigón-Melón ◽  
Alice Petre ◽  
Eloy García-Calvo
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant

Simultaneous removal of dissolved organic matter and nitrate from sewage treatment plant effluents using photocatalytic membranes

2018 ◽  
Vol 143 ◽  
pp. 250-259 ◽  
Author(s):  
Hang Xu ◽  
Yang Li ◽  
Mingmei Ding ◽  
Wei Chen ◽  
Kang Wang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Simultaneous Removal

Suivi du fonctionnement d'une station d'epuration associant physico-chimie et biofiltration = Metabief (France)

1990 ◽  
Vol 22 (1-2) ◽  
pp. 251-259 ◽  
Author(s):  
R. Pujol
Keyword(s):  
Organic Matter ◽  
Biological Process ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Cold Temperatures ◽  
Biological Sludge ◽  
Physico Chemical ◽  
Total Plant ◽  
Sludge Characteristic

The sewage treatment plant of Metabief (East of France) has been monitored during three weeks in winter 1988. The treatment associates a physico-chemical treatment with a biological process of biofiltration. The first step eliminates about 60 % of the organic matter (COD and BOD). The biofliters improve the treatment removing 60 % of COD influent and 65 % of TSS. The process is efficient (N excepted) under conditions of the experiment but nitrification is limited by cold temperatures (< 10°C). Important results related to biological sludge product are presented (sludge characteristic, microscopic data, sludge production). Power consumption of biofliters represents 70 % of the total plant needs. Adequate control of washing cycles and close survey of numerous movable devices are of the utmost importance to guarantee the proper operating of biofliters.

Waste Brick as Constructed Wetland Fillers to Treat the Tail Water of Sewage Treatment Plant

2020 ◽  
Vol 104 (2) ◽  
pp. 273-281 ◽  
Author(s):  
Guozhen Zhang ◽  
Kai Ma ◽  
Zixian Zhang ◽  
Xingbao Shang ◽  
Fuping Wu
Keyword(s):  
Constructed Wetland ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Tail Water

scholarly journals Bacteriological, Physical And Chemical Properties Of The Pagla Sewage Treatment Plant’s Water

1970 ◽  
Vol 21 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Mihir Lal Saha ◽  
Ashraful Alam ◽  
Mahbubar Rahman Khan ◽  
Sirajul Hoque
Keyword(s):  
Heterotrophic Bacteria ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Chemical Properties ◽  
Bacillus Sphaericus ◽  
Gram Negative Bacteria ◽  
Gram Positive ◽  
Gram Negative ◽  
Treated Water

Samples from Pagla sewage treatment plant at different treatment stages showed more or less similar temperature (26.9 - 27.5°C). The pH ranged from 7.2 - 7.9. Influent water and primary sedimentation tank water were brownish in colour while sludge water was light black. The lagoon water and treated water were greenish. The ammonium?nitrogen (NH+4-N) and nitrate?nitrogen (NO-3?N) ranged from 5.24 - 61.94 mg/l and 2.55 - 11.02 mg/l, respectively. Phosphorus of the water was 1.34 - 4.50 mg/l. The suspended solids (SS) ranged from 25.48 ? 374.69 mg/l. In the present study the amount of SS in the treated water were found to be quite satisfactory. The total bacterial population in Pagla sewage treatments plant was in between 2.9 × 104 and 2.5 × 106 cfu/ml. The qualitative bacterial spectrum showed a potential consortium of bacteria associated with the treatment plant. Both Gram positive and Gram negative bacteria were present. Gram positive bacteria were represented by the different species of the genus Bacillus, Aureobacterium and Kurthia. Among them Bacillus was the dominant genus. The different species of Bacillus were Bacillus sphaericus, B. fastidiosus, B. circulans and B. pasteurii. Gram negative bacteria were Zoogloea, Yersinia, Citrobacter and Pseudomonas. A good number of microorganisms were found to be associated with the bio-oxidation of the organic compounds of the influent. The Zoogloea along with other free flowing aerobic heterotrophic bacteria like Bacillus, Pseudomonas could play the major role in the sewage treatment.DOI: http://dx.doi.org/10.3329/dujbs.v21i1.9739 DUJBS 2012 21(1): 1-7

Tracing sewage-derived organic matter into a shallow groundwater food web using stable isotope and fluorescence signatures

2011 ◽  
Vol 62 (2) ◽  
pp. 119 ◽  
Author(s):  
Adam Hartland ◽  
Graham D. Fenwick ◽  
Sarah J. Bury
Keyword(s):  
Organic Matter ◽  
Stable Isotope ◽  
Food Web ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Shallow Groundwater ◽  
Organic Pollution ◽  
Food Sources ◽  
Δ13c And Δ15n

Little is known about the feeding modes of groundwater invertebrates (stygofauna). Incorporation of sewage-derived organic matter (OM) into a shallow groundwater food web was studied using fluorescence and stable isotope signatures (δ13C and δ15N). Organic pollution was hypothesised to limit sensitive species’ abundances along the contamination gradient and isotope signatures of stygofauna consuming sewage-derived OM were expected to be enriched in δ15N. Stygofauna communities near a sewage treatment plant in New Zealand were sampled over 4 months and microbial biofilms were incubated in situ on native gravel for 1 month. As anticipated, OM stress-subsidy gradients altered stygofauna composition: the biomass of oligochaetes and Paraleptamphopus amphipods increased in OM-enriched groundwater (higher dissolved organic carbon (DOC) and tryptophan-like fluorescence), whereas other, probably less-tolerant taxa (e.g. ostracods, Dytiscidae) were absent. Isotopic signatures for stygofauna from polluted groundwater were consistent with assimilation of isotopically enriched sewage-N (δ15N values of 7–16‰), but highly depleted in δ13C relative to sewage. Negative 13C discriminations probably occur in Paraleptamphopus amphipods, and may also occur in oligochaetes and Dytiscidae, a finding with implications for the application of δ13C for determining food sources in groundwaters. Organic pollution of groundwaters may have serious repercussions for stygofauna community structure with potentially irreversible consequences.

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