scholarly journals PHYSICO-CHEMICAL PROPERTIES AFFECTING PHYTOPLANKTON DIVERSITY AND BACTERIOLOGICAL CHARACTERS IN TERTIARY SEWAGE WATER TREATMENT PLANT

2006 ◽  
Vol 7 (1) ◽  
pp. 93-109
Author(s):  
Gahiza Ismail ◽  
Wafaa Abou El–Kheir ◽  
Tarek Tawfik ◽  
Farid Abou El-Nour ◽  
Doaa Hammad
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Chemical Properties ◽  
Water Treatment Plant ◽  
Sewage Water ◽  
Phytoplankton Diversity ◽  
Physico Chemical ◽  
Sewage Water Treatment

An Investigation of Sewage Water Treatment Plant and Its Physico-Chemical Analysis

2021 ◽  
pp. 102061
Author(s):  
K.A. Sheik Syed Ishak ◽  
A. Paneerselvam ◽  
V. Ambikapathy ◽  
R. Sathya ◽  
A. Vinothkanna
Keyword(s):  
Water Treatment ◽  
Chemical Analysis ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Sewage Water ◽  
Physico Chemical ◽  
Sewage Water Treatment

scholarly journals Physico-chemical analysis of Sewage water treatment plant at Jagjeetpur Haridwar, Uttarakhand

2016 ◽  
Vol 17 (3) ◽  
pp. 133-142
Author(s):  
R. Bhutiani ◽  
◽  
D.R. Khanna ◽  
Shubham Kumar ◽  
Faheem Ahamad ◽  
...  
Keyword(s):  
Water Treatment ◽  
Chemical Analysis ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Sewage Water ◽  
Physico Chemical ◽  
Sewage Water Treatment

scholarly journals PLC and SCADA Based Sewage Water Treatment Plant

IJIREEICE ◽  
2017 ◽  
Vol 5 (5) ◽  
pp. 38-41
Author(s):  
Anuj Hiray ◽  
Omkar Chinchkar ◽  
Parth Butte ◽  
Mrs. Vaneela Pyla
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Sewage Water ◽  
Sewage Water Treatment

scholarly journals Persistence, Transmission, and Virulence Characteristics of Aeromonas Strains in a Duckweed Aquaculture-Based Hospital Sewage Water Recycling Plant in Bangladesh

2006 ◽  
Vol 73 (5) ◽  
pp. 1444-1451 ◽  
Author(s):  
Mokhlasur Rahman ◽  
Geert Huys ◽  
Motiur Rahman ◽  
M. John Albert ◽  
Inger Kühn ◽  
...  
Keyword(s):  
Water Treatment ◽  
Environmental Control ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Sewage Water ◽  
Hospitalized Children ◽  
Enterotoxin Gene ◽  
Healthy Humans ◽  
Sewage Water Treatment ◽  
Hospital Sewage

ABSTRACT The persistence and transmission of Aeromonas in a duckweed aquaculture-based hospital sewage water treatment plant in Bangladesh was studied. A total of 670 samples from different sites of the hospital sewage water treatment plant, from feces of hospitalized children suffering from diarrhea, from environmental control ponds, and from feces of healthy humans were collected over a period of three years. In total, 1,315 presumptive Aeromonas isolates were biochemically typed by the PhenePlate rapid screening system (PhP-AE). A selection of 90 representative isolates was further analyzed with PhenePlate (PhP) extended typing (PhP-48), fatty acid methyl ester analysis, and amplified fragment length polymorphism (AFLP) fingerprinting. In addition, the prevalence of the putative virulence factors hemolysin and cytotoxin and the presence of the cytolytic enterotoxin gene (AHCYTOEN) were analyzed. Aeromonas was found at all sites of the treatment plant, in 40% of the samples from environmental control ponds, in 8.5% of the samples from hospitalized children suffering from diarrhea, and in 3.5% of samples from healthy humans. A significantly high number of Aeromonas bacteria was found in duckweed, which indicates that duckweed may serve as a reservoir for these bacteria. PhP-AE typing allowed identification of more than 192 distinct PhP types, of which 18 major PhP types (MTs) were found in multiple sites and during several occasions. AFLP fingerprinting revealed the prevalence of genotypically indistinguishable Aeromonas isolates among certain PhP MTs recovered from different sampling occasions and/or at multiple sites. Hemolytic and cytotoxic activities were observed in 43% of the tested strains, whereas 29% possessed the cytolytic enterotoxin gene AHCYTOEN. Collectively, two specific MTs associated with diarrhea were shown to exhibit high cytotoxicity. Furthermore, all tested isolates of these major types were positive for the cytolytic enterotoxin gene. In conclusion, our data indicate that certain phenotypically and genotypically stable clonal lineages of Aeromonas have persisted in the treatment system for a prolonged period and might spread from the hospitalized children suffering from diarrhea to fish produced for human consumption through the sewage water treatment system.

scholarly journals Estrogenic Profile of the Svratka and Svitava Rivers in the Brno Area

2009 ◽  
Vol 78 (2) ◽  
pp. 313-317 ◽  
Author(s):  
Tomáš Nekvapil ◽  
Ivana Borkovcová ◽  
Miriam Smutná ◽  
Zdeňka Svobodová
Keyword(s):  
Water Treatment ◽  
Solid Phase ◽  
Sampling Site ◽  
Treatment Plant ◽  
Endocrine System ◽  
Water Treatment Plant ◽  
Sewage Water ◽  
Reversed Phase ◽  
Low Concentrations ◽  
Sewage Water Treatment

Estrogens are chemical compounds considered to be endocrine disruptors. They are thought to affect the endocrine system even at low concentrations found in water (ng l-1). The aim of this work was to determine estrogenic compound levels in the rivers in the Brno area. The concentration of 17β-estradiol, ethynylestradiol, estrone and diethylstilbestrol was estimated in the water samples collected in the Svratka and Svitava rivers. Estrogens were isolated from the samples using solid-phase extraction with Oasis HLB cartridges and determined by means of reversed phase HPLC with UV detection. The detection limit of the method used was 6 ng l-1, repeatability expressed as RSD was 11%, and recovery was 87 - 103%. Estrogen values detected ranged in the interval of 6-209 ng l-1, depending on the sampling site. After treatment in the sewage water treatment plant, the water displayed markedly lower levels of estrogenic compounds. The results of the experiment demonstrate that HPLC-UV is a suitable method for determination of low concentrations of estrogens in water. The sewage water treatment plant reduces concentrations of estrogens but not sufficiently to prevent their estrogenic effect on fish.

scholarly journals Sewage Water Treatment Plant for Hingna

2021 ◽  
Vol 9 (VI) ◽  
pp. 796-798
Author(s):  
Vinay Khewale
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Water Treatment Plant ◽  
Sewage Water ◽  
Treated Effluent ◽  
Sewage Water Treatment

A sewage water treatment plant is necessary to receive and treat waste water (Domestic, Commercial, and Industrial). Its objective is to be convert harmful waste water to safe water environmentally and treated effluent and treated sludge suitable for reuse and disposal such as farm fertilizer. The characteristics of waste water have been performed followed by design of sewage treatment plant. The present study includes design of sewage treatment plant and analysis of waste water – PH value, Total Dissolved Solids (TDS), Total Suspended Solids (TSS), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Solids (TS), Hardness, Chloride, Acidity, Oil, Fats and grease etc. The sample collection of waste water has been done in many times in a day to obtain an average value of major parameter. Followed by values of this parameter, calculations are done for designing the units of sewage treatment plant and layout is prepared for the same

scholarly journals Enterococcus faecalis Gene Transfer under Natural Conditions in Municipal Sewage Water Treatment Plants

1998 ◽  
Vol 64 (2) ◽  
pp. 626-632 ◽  
Author(s):  
Herbert Marcinek ◽  
Reinhard Wirth ◽  
Albrecht Muscholl-Silberhorn ◽  
Matthias Gauer
Keyword(s):  
Water Treatment ◽  
Sex Pheromone ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Sewage Water ◽  
Municipal Sewage ◽  
Natural Conditions ◽  
Laboratory Conditions ◽  
Sewage Water Treatment ◽  
Different Strains

ABSTRACT The ability of Enterococcus faecalis to transfer various genetic elements under natural conditions was tested in two municipal sewage water treatment plants. Experiments in activated sludge basins of the plants were performed in a microcosm which allowed us to work under sterile conditions; experiments in anoxic sludge digestors were performed in dialysis bags. We used the following naturally occurring genetic elements: pAD1 and pIP1017 (two so-called sex pheromone plasmids with restricted host ranges, which are transferred at high rates under laboratory conditions); pIP501 (a resistance plasmid possessing a broad host range for gram-positive bacteria, which is transferred at low rates under laboratory conditions); and Tn916 (a conjugative transposon which is transferred under laboratory conditions at low rates to gram-positive bacteria and at very low rates to gram-negative bacteria). The transfer rate between different strains of E. faecalis under natural conditions was, compared to that under laboratory conditions, at least 105-fold lower for the sex pheromone plasmids, at least 100-fold lower for pIP501, and at least 10-fold lower for Tn916. In no case was transfer from E. faecalisto another bacterial species detected. By determining the dependence of transfer rates for pIP1017 on bacterial concentration and extrapolating to actual concentrations in the sewage water treatment plant, we calculated that the maximum number of transfer events for the sex pheromone plasmids between different strains of E. faecalisin the municipal sewage water treatment plant of the city of Regensburg ranged from 105 to 108 events per 4 h, indicating that gene transfer should take place under natural conditions.

scholarly journals Genome Sequence of the Siphoviridae Staphylococcus aureus Phage vB_SauS_BaqSau1

2020 ◽  
Vol 9 (15) ◽  
Author(s):  
Dayan Lozano-Solano ◽  
Jhonnatan Reales-González ◽  
Heath W. Catoe ◽  
Raul R. Raya ◽  
Antonio J. Acosta-Hoyos
Keyword(s):  
Staphylococcus Aureus ◽  
Water Treatment ◽  
Genome Sequence ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Sewage Water ◽  
Content Type ◽  
Double Stranded Dna ◽  
Sewage Water Treatment

Here, we report the genome sequence of a Siphoviridae phage named vB_SauS_BaqSau1 (BaqSau1), infecting Staphylococcus aureus. Phage BaqSau1 was isolated from a sewage water treatment plant in Sahagún, Córdoba, Colombia. It has a double-stranded DNA (dsDNA) genome of 44,384 bp with 67 predicted genes, including a lysin containing a CHAP (cysteine, histidine-dependent amidohydrolase/peptidase) domain.

scholarly journals Extraction, characterization and application of malva nut gum in water treatment

2014 ◽  
Vol 13 (2) ◽  
pp. 489-499 ◽  
Author(s):  
Y. C. Ho ◽  
I. Norli ◽  
Abbas F. M. Alkarkhi ◽  
N. Morad
Keyword(s):  
Molecular Weight ◽  
Water Treatment ◽  
Negative Charge ◽  
Polymer Surface ◽  
Treatment Plant ◽  
Chemical Properties ◽  
Single Mode ◽  
Water Treatment Plant ◽  
Physico Chemical ◽  
Flocculation Process

In view of green developments in water treatment, plant-based flocculants have become the focus due to their safety, degradation and renewable properties. In addition, cost and energy-saving processes are preferable. In this study, malva nut gum (MNG), a new plant-based flocculant, and its composite with Fe in water treatment using single mode mixing are demonstrated. The result presents a simplified extraction of the MNG process. MNG has a high molecular weight of 2.3 × 105 kDa and a high negative charge of −58.7 mV. From the results, it is a strong anionic flocculant. Moreover, it is observed to have a branch-like surface structure. Therefore, it conforms to the surface of particles well and exhibits good performance in water treatment. In water treatment, the Fe-MNG composite treats water at pH 3.01 and requires a low concentration of Fe and MNG of 0.08 and 0.06 mg/L, respectively, when added to the system. It is concluded that for a single-stage flocculation process, physico-chemical properties such as molecular weight, charge of polymer, surface morphology, pH, concentration of cation and concentration of biopolymeric flocculant affect the flocculating performance.

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