scholarly journals Determine the Required Log Reductions of Human Intestinal Helminth Eggs by Waste Stabilization Pond: A Simulation for Wastewater Recycling in Agriculture

2019 ◽  
Vol 15 (1) ◽  
pp. 11-25
Author(s):  
Adel S. Faskol ◽  
Gabriel Racoviteanu
Keyword(s):  
Treatment Process ◽  
Hydraulic Retention Time ◽  
Climatic Conditions ◽  
Intestinal Helminth ◽  
Waste Stabilization Ponds ◽  
Waste Stabilization Pond ◽  
Helminth Eggs ◽  
Stabilization Ponds ◽  
Waste Stabilization ◽  
Wastewater Recycling

Abstract This paper investigates the determined the required log reductions for human intestinal helminth eggs by waste stabilization ponds as simulation as assessing of mitigating health risk to satisfy practice WHO, 2006 guidelines for the safe use of wastewater in agriculture (≤ 0.1 helminth egg/L) to protect the health of children under 15 years was the development of MATLAB, a computer program based waste stabilization ponds design based on parameter uncertainty and 10,000-trial Monte Carlo simulations were developed for a series of anaerobic, facultative and maturation ponds based on 95%-ile of effluent (≤ 0.1 helminth egg/L) which the result in a health-based target. Whereas the influent of the helminth eggs (Nematode) was (932.500 eggs/L). While the treatment provided (100 % reduction/removal) for the overall treatment process with total hydraulic retention time in climatic conditions of Libya it took 36.207 days in the anaerobic pond, facultative pond, first maturation pond and one of the subsequent maturation pond.

Rotavirus removal in experimental waste stabilization pond systems with different geometries and configurations

1995 ◽  
Vol 31 (12) ◽  
pp. 285-290 ◽  
Author(s):  
J. I. Oragui ◽  
H. Arridge ◽  
D. D. Mara ◽  
H. W. Pearson ◽  
S. A. Silva
Keyword(s):  
Clostridium Perfringens ◽  
Slow Process ◽  
Faecal Coliforms ◽  
Waste Stabilization Ponds ◽  
Stabilization Pond ◽  
Waste Stabilization Pond ◽  
Stabilization Ponds ◽  
Waste Stabilization

Rotavirus removal in waste stabilization ponds is a relatively slow process: in a series of ten ponds (a 1-d anaerobic pond followed by nine 2-d ponds) its numbers were reduced from 1.4 × 105 per litre to zero, and in an “innovative” series (a 1-day anaerobic pond, 3-d facultative pond, 3.8-d, 3-d and 5-d maturation ponds) from 5.1 × 104 per litre to <5 per litre. Faecal coliforms were better indicators of rotaviruses than was Clostridium perfringens .

Evaluation of a tropical single-cell waste stabilization pond system for irrigation

1995 ◽  
Vol 31 (12) ◽  
pp. 267-273 ◽  
Author(s):  
B. S. O. Ceballos ◽  
A. Konig ◽  
B. Lomans ◽  
A. B. Athayde ◽  
H. W. Pearson
Keyword(s):  
Single Cell ◽  
Removal Efficiency ◽  
Retention Time ◽  
Hydraulic Retention Time ◽  
Full Scale ◽  
Waste Stabilization Pond ◽  
North East ◽  
Helminth Eggs ◽  
Waste Stabilization ◽  
Better Than

A single full-scale primary facultative pond in Sapé, north-east Brazil was monitored for performance and efficiency. The pond had a hydraulic retention time of 61 days and achieved a 95% BOD5 removal efficiency and had no helminth eggs in the effluent. The effluent failed to meet the WHO faecal coliform guideline for unrestricted irrigation. The pond was dominated by the cyanobacterium Microcystis and gave better than predicted orthophosphate removal. Details of how the system could be simply upgraded utilizing the same land are discussed.

Process design of waste stabilization ponds at high altitude in Bolivia

2000 ◽  
Vol 42 (10-11) ◽  
pp. 307-313 ◽  
Author(s):  
M. Juanico ◽  
H. Weinberg ◽  
N. Soto
Keyword(s):  
Sea Level ◽  
Oxygen Pressure ◽  
Climatic Conditions ◽  
Limiting Factor ◽  
Oxygen Solubility ◽  
Low Oxygen ◽  
Important Conclusion ◽  
Waste Stabilization Ponds ◽  
Stabilization Ponds ◽  
Waste Stabilization

The Altiplano, located at 15°–20°S, has an altitude of about 4000 m above sea level which determines extreme climatic conditions that may affect the performance of stabilization ponds: strong solar radiation due to a thin atmosphere of rarefied, clean, dry air; low mean temperatures of water and air; strong differences in temperature between day and night; low oxygen pressure. The oxygen pressure at 4000 m altitude is only 60% of that at sea level. However, lower water temperatures increase oxygen solubility in water compensating for the effect of altitude in the actual concentration of dissolved oxygen in water. Lack of oxygen is not a crucial limiting factor for sewage treatment at high altitudes. Anaerobic ponds are effective in the Altiplano, in spite of the low water temperatures (7–9°C). Design criteria for WSP at different altitudes in Bolivia are presented. An important conclusion with social connotations is that the communities of the Altiplano will need to construct waste stabilization ponds which are 3–5 times larger (and more expensive) than those of the “Los Llanos”.

Performance Evaluation of Pilot Waste Stabilization Ponds in Subtropical Region

1992 ◽  
Vol 26 (7-8) ◽  
pp. 1717-1728 ◽  
Author(s):  
M. A. Khan ◽  
S. I. Ahmad
Keyword(s):  
Fecal Coliform ◽  
Domestic Wastewater ◽  
Climatic Conditions ◽  
Maximum Efficiency ◽  
University Campus ◽  
Subtropical Region ◽  
Waste Stabilization Ponds ◽  
Stabilization Ponds ◽  
Waste Stabilization

This research investigation was aimed at demonstrating the technical feasibility of facultative waste stabilization ponds under the climatic conditions of subtropical region. A pilot plant was designed and constructed at the Karachi University Campus for the treatment of domestic wastewater. An intensive analytical programme was followed for ten months for evaluating performance efficiency of the facultative ponding system. The algal-bacterial symbiotic system performed satisfactorily and provided effluent with total BOD5 ranging between 26-76 mg/L, total COD ranging between 59-197 mg/L, TKN ranging between 5.35-47.82 mg/L, NH3-N ranging between 0.23-28.98 mg/L, and PO4-P between 1.41-6.76 mg/L. The maximum efficiency achieved for the removal of coliform, fecal coliform and fecal streptococci was 99.99%. The study demonstrated that high BOD5 loading of 507 kg/ha d was possible without deteriorating the quality of performance. It was particularly observed that wind velocity had a pronounced effect on the overall efficiency of the system. It was concluded that facultative ponding system is strongly feasible for this part of the world for the treatment of wastewater.

scholarly journals Removal of escherichia coli using waste stabilization pond: A simulation in climatic conditions of Libya

2019 ◽  
Vol 85 ◽  
pp. 06013
Author(s):  
Adel Faskol ◽  
Gabriel Racoviţeanu
Keyword(s):  
Escherichia Coli ◽  
Hydraulic Retention Time ◽  
Important Determinant ◽  
Climatic Conditions ◽  
Who Guidelines ◽  
E Coli ◽  
Stabilization Pond ◽  
Waste Stabilization Pond ◽  
Waste Stabilization

The most important determinant when recycling of wastewater for agriculture is that related to public health. This paper investigates the removal of Escherichia Coli/coliform in the waste stabilization pond as simulation as assessing of mitigating health risk. A case study in climatic conditions of Libya. As a result of a computer program based waste stabilization pond design based on parameter uncertainty and 10,000-trial Monte Carlo simulations, were developed for a series of anaerobic, facultative and maturation ponds to produce on a 95%-ile value <1000 E. Coli per 100 ml. While a number of influent of E. Coli bacteria was (156.732×106 E. Coli /100ml). Where it decreased was a number of the effluent (10 E. Coli /100ml). Where the efficiency of removal E. Coli bacteria was (99.999 %). And the overall hydraulic retention time it took 89.548 days in the anaerobic pond, facultative pond, first maturation pond and twelve of the subsequent maturation ponds. To satisfy practice 2006 WHO guidelines for the safe use of wastewater in agriculture.

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