Comparative design and performance analysis of three different in configuration waste stabilization ponds pilot units in a Mediterranean-temperate climate

2003 ◽  
Vol 3 (4) ◽  
pp. 193-200 ◽  
Author(s):  
G.A. Parissopoulos ◽  
A. Papadopoulos ◽  
F. Papadopoulos ◽  
A. Karteris
Keyword(s):  
Warm Period ◽  
Temperate Climate ◽  
Waste Stabilization Ponds ◽  
Natural Systems ◽  
Effluent Quality ◽  
Stabilization Ponds ◽  
Treated Effluent ◽  
Waste Stabilization ◽  
Slow Sand Filter ◽  
And Performance

The performance of three waste stabilization ponds (WSP) treatment units (lines A, B, C) for a period of two years is presented. The above units were part of a research and demonstration project in North Greece concerning wastewater treatment with natural systems and effluent reuse for irrigation. Line A consisted of a deep anaerobic pond followed by a facultative and two maturation ponds. The anaerobic pond supplied with 120 m3/d was also feeding line B at a ratio 1:3 (line A: line B). Line B had the same design features with line A but with a recirculation of effluent. The third unit fed with primary treated effluent at a rate of 50m3/d from the WWTP of Thessaloniki was consisted of a facultative and two maturation ponds. In the anaerobic pond the BOD5, COD, SS, TC and FC mean reduction was 28%, 42%, 58%, 31% and 36% for the cold period (T<10°C) and 45%, 53%, 72%, 67% and 71% for the warm period (T>10°C) respectively. In line A, the BOD5, COD, SS, TC and FC total reduction was 98%, 89%, 93%, 99.99% and 99.99% for the cold and 98%, 85%, 88%, 99.99% and 99.99% for the warm period. In line B the reduction was 92%, 86%, 88%, 98.5% and 98.82% for the cold and 96%, 88%, 83%, 99.95% and 99.97% for the warm period. In line C the reduction of the same parameters was 92%, 64%, 40%, 99.88% and 99.96% for the cold and 92%, 59%, 22%, 99.99% and 99.99% for the warm period. The effluent quality was further improved with the use of a storage reservoir and a slow sand filter and reused successfully for crop irrigation.

Performance of a system combining aerated lagoons and waste stabilization ponds in a temperate climate

2000 ◽  
Vol 42 (10-11) ◽  
pp. 23-34 ◽  
Author(s):  
T. Nameche ◽  
O. Dufayt ◽  
H. El Ouarghi ◽  
J.L. Vasel
Keyword(s):  
High Efficiency ◽  
Treatment Plant ◽  
Organic Load ◽  
Temperate Climate ◽  
Absolute Difference ◽  
Waste Stabilization Ponds ◽  
Mean Absolute Difference ◽  
Stabilization Ponds ◽  
Waste Stabilization ◽  
Components Analysis

AbstractThe Bertrix wastewater treatment plant was designed and built for experimental purposes, especially for comparing aerated lagoons and stabilization ponds in a temperate climate. This plant was designed for a capacity of 7500 inhab. eq, and aerated lagoons were dimensioned to eliminate 50% of the organic load. The remaining load has to be degraded in the series of stabilization ponds. In this paper we shall present the plant in more detail and the results of a 3-year study, i.e., 79 rounds of samples for each of the five ponds under study, placing emphasis on the performances of aerated lagoons and stabilization ponds. Principal components analysis (of inflow and outflow) of aerated lagoons and stabilization ponds will be presented and commented on. The most important factors are the hydraulic loading and the concentrations. Seasonal variations appear only in the basins' temperatures. The fates of nitrogen compounds are quite different from those of organic compounds, confirming that a high efficiency of nitrogen removal is difficult to achieve, especially for short residence times (less than eight days). A few other conclusions of our study are given below: The ponds' hydrodynamics has been studied and a mathematical model is now available If there is no stratification in the ponds, a thermal model can be proposed where the mean absolute difference is 0.7°C±0.2. In the system under study, the contribution of algal biomass to the system is very small.

scholarly journals EFFECTIVENESS OF WASTE STABILIZATION PONDS IN REMOVAL OF LINEAR ALKYL BENZENE SALFONATE (LAS)

2013 ◽  
pp. 134-142
Author(s):  
Ahmad Mohmed Abdelrahman ◽  
Ahmed Mohmed ◽  
Ali Gad ◽  
Mohmed Hashem
Keyword(s):  
Common Property ◽  
Winter Season ◽  
Treated Wastewater ◽  
Alkyl Benzene ◽  
Waste Stabilization Ponds ◽  
Alkyl Benzene Sulfonate ◽  
Linear Alkyl Benzene ◽  
Stabilization Ponds ◽  
Treated Effluent ◽  
Waste Stabilization

Detergents contain synthetic or organic surface active agents called surfactants, which are derived from petroleum product precursors. They have the common property of lowering the surface tensions of water thus allowing dirt or grease adhered to various articles to be washed off. Linear alkyl benzene sulfonate (LAS) is an anionic surfactant most commonly used. Discharge of raw or treated wastewater containing this chemical into the environment causes major public health and enviromental problems. In this study, samples were taken from the raw wastewater and effluents of treatment ponds of Elzaraby waste stabilization ponds over a period of one year. The treated effluent is either discharged into surface waters or reused for agricultural irrigation. The samples were analyzed according to the standard methods. The results obtained from the samples taken in different seasons showed that the highest overall removal efficiency of LAS was achieved in the summer season (77%), and the least efficiency observed in the Winter season (55%), while the maximum overall efficiency of BOD5 was in summer (88%) and minimum efficiency was (73%) in winter season. The Dissolved oxygen concentrations along the pond series (DO) ranged between 0.18 to 4.8 mg/l.

Treatment of oilfield produced water by waste stabilization ponds

2007 ◽  
Vol 55 (11) ◽  
pp. 265-271 ◽  
Author(s):  
R. Shpiner ◽  
S. Vathi ◽  
D.C. Stuckey
Keyword(s):  
Produced Water ◽  
Sand Filter ◽  
Waste Stabilization Ponds ◽  
Stabilization Ponds ◽  
Waste Stabilization ◽  
Slow Sand Filter ◽  
Hydrocarbon Removal ◽  
Promising Solution ◽  
Alternative Water ◽  
Operational Modes

Produced water (PW) from oil wells can serve as an alternative water resource for agriculture if the main pollutants (hydrocarbons and heavy metals) can be removed to below irrigation standards. Waste stabilization ponds seem like a promising solution for PW treatment, especially in the Middle East where solar radiation is high and land is available. In this work, hydrocarbon removal from PW in a biological waste stabilization pond was examined at lab-scale followed by an intermittent slow sand filter. The system was run for 300 days and removed around 90% of the oil in the pond, and 95% after the sand filter. COD removal was about 80% in the pond effluent, and 85% after the filter. The system was tested under various operational modes and found to be stable to shock loads. Installation of oil booms and decantation of surface oil seem to be important in order to maintain good system performance over time.

A Study of Upgrading Waste Stabilization Ponds

1987 ◽  
Vol 19 (1-2) ◽  
pp. 77-83
Author(s):  
P. R. Thomas ◽  
H. O. Phelps
Keyword(s):  
Suspended Solids ◽  
Oxygen Demand ◽  
Domestic Sewage ◽  
Coliform Bacteria ◽  
Waste Stabilization Ponds ◽  
Effluent Quality ◽  
Stabilization Ponds ◽  
Waste Stabilization ◽  
Before And After ◽  
Water Hyacinths

A study was carried out in one of the two facultative stabilization ponds operating in parallel and receiving domestic sewage in excess of their capacities. Effluent quality from the pond was monitored in terms of the parameters total suspended solids, biochemical oxygen demand, pH, dissolved oxygen and faecal coliform bacteria before and after the introduction of water hyacinths. No significant improvement in effluent quality was observed after the introduction of the water hyacinths. High loading on the pond did not permit to upgrade the effluent quality to acceptable standards by the use of water hyacinths. Although the research is continuing some results and recommendations are given.

The Effects of Sulphide Generation in Waste Stabilization Ponds on Photosynthetic Populations and Effluent Quality

1992 ◽  
Vol 26 (7-8) ◽  
pp. 1759-1768 ◽  
Author(s):  
S. R. Houghton ◽  
D. D. Mara
Keyword(s):  
Domestic Wastewater ◽  
Waste Stabilization Ponds ◽  
Effluent Quality ◽  
Stabilization Ponds ◽  
Waste Stabilization ◽  
Scale Models ◽  
Sulphur Bacteria ◽  
Sulphide Production

This study concerns the role of sulphide production in the reduction of algal populations and proliferation of purple sulphur bacteria in primary waste stabilization ponds, and the effect of such changes on effluent quality and hydrogen sulphide odour release. Full-scale ponds in Israel were compared to laboratory-scale models fed with domestic wastewater at various organic and sulphate loads. The phenomenon occurred in ponds whose organic loads were between those normally thought appropriate to facultative and anaerobic ponds. Algae of the genus Chlamydomonas were most tolerant of sulphide in ponds, confirming previous in vitro studies. Populations of both photosynthetic groups in the models were related to surface BOD5 loading rates and influent sulphate and sulphide concentrations. Purple sulphur bacteria were unable to prevent all odour release, so situations where they proliferate should be avoided by redesign. Shifts from algal to purple sulphur bacterial dominance caused by increased sulphide concentrations under constant loads were not observed to affect adversely effluent quality in terms of BOD5 and COD.

Waste Stabilization Ponds in France: An Overall Review

1987 ◽  
Vol 19 (12) ◽  
pp. 25-31 ◽  
Author(s):  
P. Boutin ◽  
A. Vachon ◽  
Y. Racault
Keyword(s):  
Rural Communities ◽  
Statistical Interpretation ◽  
Pond Management ◽  
Waste Stabilization Ponds ◽  
Effluent Quality ◽  
Regional Features ◽  
Design Basis ◽  
Stabilization Ponds ◽  
Waste Stabilization ◽  
Plant Area

In 1983 and 1986, surveys were conducted all over France on wastewater stabilization by “natural” ponds (lagoons), including an almost exhaustive inventory of the 1400 plants then operating. The statistical interpretation of collected data made it possible to analyse the spread of this technique, which became truly popular only ten years ago, and to discern the usual design basis and regional features. With a mean plant area of 5500 m2, lagoons are usually restricted to the treatment of effluents from rural communities, with the exception of large plants in coastal touristic areas. Partially planted ponds are a competing alternative to conventional algal lagooning. Current conditions of pond management are reviewed, with results of effluent quality.

Waste Stabilization Ponds in Grand Cayman, Cayman Islands

1991 ◽  
Vol 24 (2) ◽  
pp. 391-394
Author(s):  
G. L. Frederick
Keyword(s):  
Cayman Islands ◽  
Contributing Factors ◽  
Waste Stabilization Ponds ◽  
Grand Cayman ◽  
Effluent Quality ◽  
Stabilization Ponds ◽  
Waste Stabilization ◽  
Final Effluent

The experience of pond performance in Grand Cayman is described. Monitoring of the system indicates that over the two years since commissioning the performance and final effluent quality have changed. This paper intends to address the contributing factors that might have caused these changes.

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