Operation description and physicochemical characteristics of influent, effluent and the tertiary treatment from a sewage treatment plant of the Eastern Region of Cyprus under warm climates

2010 ◽  
Vol 22 (1-3) ◽  
pp. 244-257 ◽  
Author(s):  
Antonis. A. Zorpas ◽  
Chryso Coumi ◽  
Miloslav Drtil ◽  
Irene Voukalli ◽  
Petros Samaras
Keyword(s):  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Physicochemical Characteristics ◽  
Eastern Region ◽  
Tertiary Treatment ◽  
Warm Climates

scholarly journals Arcobacter cryaerophilusand thermophilic campylobacters in a sewage treatment plant in Italy: two secondary treatments compared

1993 ◽  
Vol 110 (3) ◽  
pp. 633-639 ◽  
Author(s):  
S Stampi ◽  
O Varoli ◽  
F Zanetti ◽  
G De Luca
Keyword(s):  
Activated Sludge ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Most Probable Number ◽  
Tertiary Treatment ◽  
Probable Number ◽  
Urban Sewage ◽  
Thermophilic Campylobacter ◽  
The Mean

SUMMARYMicroaerophilic organisms were monitored in sewage effluent undergoing two secondary treatments: air and oxygen-activated sludge. The mean numbers ofArcobacter cryaerophilusand thermophilic campylobacters detected in incoming sewage were 5639/100 ml and 1720/100 ml respectively.Secondary treatment in air tanks reduced the population ofA. cryaerophilusby 97.1% and of thermophilic campylobacters by 99.08%, whereas treatment in oxygen tanks reduced the bacteria 97.8% and 99.63% respectively, showing that oxygen-activated sludge treatment was more effective. Subsequent tertiary treatment with 2 p.p.m. chlorine dioxide evidenced the removal ofA. cryaerophilusto 99.9% and eliminated thermophilic campylobacters.Campylobacter jejuniandC. coliconstituted 54.1% and 45.9% of 74 thermophilic campylobacter strains isolated. In air-activated sludge effluentC. jejuniwas found more often, thus appearing more sensitive to oxygen.The most probable number assay used for detection of campylobacters, blood medium for enrichment and blood-free medium for plating, also appeared to be fit forA. cryaerophilus, the high density of which in urban sewage may be due to inflows from slaughterhouses.

scholarly journals Experiment on Reuse of Effluent in Casting and Curing of Concrete

2020 ◽  
Vol 9 (4) ◽  
pp. 413-416
Keyword(s):  
Waste Water ◽  
Construction Industry ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Literature Survey ◽  
Effluent Water ◽  
Tertiary Treatment ◽  
Construction Purpose ◽  
Concrete Casting

Due to climate change and increasing population demand of water is increasing. In coming days there will be less availability of water for construction industry. On the other hand a huge quantity of water has been released to the nearby stream after treatment from Sewage Treatment Plant by the Municipal Corporations. Reuse of waste water is very less. The waste water collected is mainly from domestic. After secondary or tertiary treatment the water is released. So it is possible to reuse the effluent water for construction (mainly for Concrete casting & curing. As per the literature survey, new combinations are created seven different possibilities to find which the best preferable combination to reuse the water is. This will leads to saving the portable water and also the water can be used for drinking purpose which is current need of the society. This will satisfy need of industry, society & environment. Main focus of this experimental investigation to search possibility to use effluent water for construction purpose individually or in combination mainly for Concrete casting & Curing.

scholarly journals Actions combinées de Eichhornia crassipes et Pistia stratiotes pour traitement tertiaire de l’effluent des bassins facultatifs de la station d’épuration de Buterere, Burundi

2020 ◽  
Vol 14 (7) ◽  
pp. 2463-2475
Author(s):  
Pierre Ntakiyiruta ◽  
Gaston Nsavyimana ◽  
Bi Gouessé Henri Briton ◽  
Kopoin Adouby ◽  
David Nahimana ◽  
...  
Keyword(s):  
Eichhornia Crassipes ◽  
Sewage Treatment ◽  
Initial Density ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Population Pressure ◽  
Pistia Stratiotes ◽  
Tertiary Treatment ◽  
In Series ◽  
Combined Action

Le lac Tanganyika, exutoire des eaux de rejet de la station d’épuration de Buterere, est menacé par l’eutrophisation à cause de l’enrichissement en nutriments. Conséquence de la pression démographique, un redimensionnement en vue d’accroître la performance épuratrice de ladite station nécessiterait d’importants investissements. Fort de cela, l’action combinée de Pistia stratiotes et Eichhornia crassipes en traitement tertiaire a été envisagée. A cet effet, six tanks disposés deux à deux en série ont constitué des bassins de phytoremediation contre deux témoins. Ces tanks étaient alimentés en continu par l’effluent prélevé à la sortie des bassins facultatifs de la station. Les Pistia stratiotes et Eichhornia crassipes étaient respectivement cultivées dans ces tanks placés en amont et aval du pilote expérimental avec une densité initiale de 60 pieds/m2. Ces essais ont été suivis tous les deux jours à la sortie de chaque tank en évaluant les concentrations des paramètres jusqu’à atteindre une efficacité de 86,08%; 57,37%, 46,21%; 57,41%, 74,36%; 99,37%; 93,77% et 100% respectivement pour NH4+, NO3-, PO43- , DCO, DBO, Chlorophylle A, Chlorophylle B et Chlorophylle C. Au vue de ces résultats, cette action combinée est une alternative pour renforcer la capacité épuratrice de la station de Buterere.Mots clés : Eaux usées, nutriments, phytoremédiation, lagunage, tank, mode continu. English Title: Combined actions of Eichhornia crassipes and Pistia stratiotes for tertiary treatment of the effluent from the facultative basins of the Buterere treatment plant, BurundiLake Tanganyika, the outlet for the Buterere sewage treatment plant, is threatened by eutrophication due to nutrient enrichment. As a consequence of population pressure, a resizing to increase the treatment performance of the plant would require significant investments. With this in mind, the combined action of Pistia stratiotes and Eichhornia crassipes in tertiary treatment was considered. For this purpose, six tanks arranged two by two in series constituted phytoremediation basins against two controls. These tanks were continuously fed by the effluent taken at the exit of the optional basins of the station. Pistia stratiotes and Eichhornia crassipes were respectively cultivated in these tanks placed upstream and downstream of the experimental pilot with an initial density of 60 feet/m2. These tests were followed every two days at the exit of each tank by evaluating the concentrations of the parameters until an efficiency of 86.08%; 57.37%, 46.21%; 57.41%, 74.36%; 99.37%; 93.77% and 100% respectively for NH4+, NO3-, PO43-, COD, BOD, Chlorophyll A, Chlorophyll B and Chlorophyll C was reached. In view of these results, this combined action is an alternative to strengthen the scrubbing capacity of the Buterere plant.Keywords: Wastewater, nutrients, phytoremediation, lagooning, tank, continuous mode.  

scholarly journals Recovery of Water from Secondary Effluent through Pilot Scale Ultrafiltration Membranes: Implementation at Patras’ Wastewater Treatment Plant

Membranes ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 663
Author(s):  
Dimitris Zagklis ◽  
Fotios K. Katrivesis ◽  
Varvara Sygouni ◽  
Lamprini Tsarouchi ◽  
Konstantina Tsigkou ◽  
...  
Keyword(s):  
Produced Water ◽  
Sewage Treatment ◽  
Settling Tank ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Physicochemical Characteristics ◽  
Pilot Scale ◽  
Sewage Water ◽  
Secondary Effluent ◽  
Ultrafiltration Membranes

Fresh water shortages affect larger areas each year due to the increased human population combined with climate change. Reuse of treated sewage water (mostly for nonpotable uses) can have a significant impact on reducing water scarcity. Ultrafiltration membranes are widely considered as a very good candidate for the remediation of this type of water. The case of Patras’ sewage treatment plant was examined for the treatment of its secondary settling tank effluent using a pilot ultrafiltration unit to produce permeate water suitable for reuse according to Greek legislation. The physicochemical characteristics of the membrane permeate stream showed significant improvements in the quality of the produced water. Turbidity was reduced by 99%, total suspended solids were decreased by more than 94%, while COD was reduced by 37%. E. coli and Enterococcus were detected at high concentrations in the feed stream but were eliminated in the membrane permeate. The results presented herein indicate that the installed equipment is capable of producing improved quality water suitable for reuse even with the strictest limits imposed by Greek legislation.

Reclamation and agricultural reuse of wastewater: the experience of the Cagliari sewage treatment plant (Sardinia, Italy)

2009 ◽  
Vol 59 (1) ◽  
pp. 65-72 ◽  
Author(s):  
P. Botti ◽  
A. Virdis ◽  
G. Solinas ◽  
P. Buscarinu ◽  
M. Ferralis ◽  
...  
Keyword(s):  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Tertiary Treatment ◽  
State Of Emergency ◽  
Critical Situation ◽  
Italian Government ◽  
Mediterranean Regions ◽  
Preliminary Study ◽  
State And Local

In Sardinia, as in many other Mediterranean regions, recurrent droughts and climate change have dramatically reduced available water resources. As a result of this critical situation, in 1995 the Italian Government declared a state of emergency and drew up a program for financial support by the State and local authorities with the aim of reducing this serious deficit. One of the actions focused on reclaiming and reusing the effluent from the sewage treatment plant of Cagliari. This article reports on the multidisciplinary preliminary study performed by the Ente Acque della Sardegna (ENAS) to evaluate the suitability of reusing Is Arenas effluent for irrigation and on the operation of the tertiary treatment plant.

Analysis and balance of phosphorous removal from wastewater at urban wastewater treatment plant

2020 ◽  
Vol 15 (2) ◽  
pp. 142-151
Author(s):  
Peter Lukac ◽  
Lubos Jurik
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Wastewater Treatment Plants ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Phosphorus Recovery ◽  
Anaerobic Sludge ◽  
Biological Phosphorus Removal ◽  
The Mean

Abstract:Phosphorus is a major substance that is needed especially for agricultural production or for the industry. At the same time it is an important component of wastewater. At present, the waste management priority is recycling and this requirement is also transferred to wastewater treatment plants. Substances in wastewater can be recovered and utilized. In Europe (in Germany and Austria already legally binding), access to phosphorus-containing sewage treatment is changing. This paper dealt with the issue of phosphorus on the sewage treatment plant in Nitra. There are several industrial areas in Nitra where record major producers in phosphorus production in sewage. The new wastewater treatment plant is built as a mechanicalbiological wastewater treatment plant with simultaneous nitrification and denitrification, sludge regeneration, an anaerobic zone for biological phosphorus removal at the beginning of the process and chemical phosphorus precipitation. The sludge management is anaerobic sludge stabilization with heating and mechanical dewatering of stabilized sludge and gas management. The aim of the work was to document the phosphorus balance in all parts of the wastewater treatment plant - from the inflow of raw water to the outflow of purified water and the production of excess sludge. Balancing quantities in the wastewater treatment plant treatment processes provide information where efficient phosphorus recovery could be possible. The mean daily value of P tot is approximately 122.3 kg/day of these two sources. The mean daily value of P tot is approximately 122.3 kg/day of these two sources. There are also two outflows - drainage of cleaned water to the recipient - the river Nitra - 9.9 kg Ptot/day and Ptot content in sewage sludge - about 120.3 kg Ptot/day - total 130.2 kg Ptot/day.

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operation

2008 ◽  
Vol 37 (2) ◽  
Author(s):  
Maciej Walczak
Keyword(s):  
Water Quality ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Treatment Plants ◽  
Plant Operation ◽  
Treated Sewage ◽  
Microbiological Parameters ◽  
Microbial Indices

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operationThis paper reports the results of studies of microbiological changes in the water quality of the Vistula and Brda rivers after the opening of sewage treatment plants in Bydgoszcz. The study involved determining the microbiological parameters of water quality. Based on the results obtained, it was found that the quality of the water in both rivers had improved decidedly after the opening of the plants, although an increased number of individual groups of microorganisms was found at the treated sewage outlet from one of the plants.

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