Upgrading waste stabilization pond effluent by rock filters

Pilot-scale rock filters were constructed at the outlet of a large waste stabilization pond facility in Jordan. Their viability in upgrading the ponds' effluent was studied over a period of eleven months. This was done through studying the efficiency of four different types of locally available inexpensive materials placed in six filters and configured in three trains. The efficiency of each filter and the three combinations was evaluated. Results show that the filters can reduce the ponds' effluent content of TSS and BOD5 by 60%, TFCC by a maximum of 94% and T-P by 46%. This was achieved with a loading of 0.033-0.044 kgTSS/m3.d at an average temperature of 25 °C. Of the four media, the wadi gravel medium (3-23 cm) performed best. It was concluded that rock filters constitute a promising upgrading technique for pond effluent.

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Long-term effect of sediment on the performance of a pilot-scale duckweed-based waste stabilization pond

The Science of The Total Environment ◽

10.1016/j.scitotenv.2021.145216 ◽

2021 ◽

Vol 770 ◽

pp. 145216

Author(s):

Qi Tu ◽

Yifeng Lu ◽

Yonggui Zhao ◽

Changqun Duan ◽

Jun Huang ◽

...

Keyword(s):

Pilot Scale ◽

Term Effect ◽

Stabilization Pond ◽

Waste Stabilization Pond ◽

Waste Stabilization ◽

Long Term Effect

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Determination of the Efficiency of Aerated Lagoon in Biological Treatment of Human Waste (Faeces)

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.367.827 ◽

2011 ◽

Vol 367 ◽

pp. 827-830

Author(s):

T. Omotoso ◽

O.P. Folorunso

Keyword(s):

Biological Treatment ◽

Inorganic Material ◽

Pilot Scale ◽

Engineering Construction ◽

Human Waste ◽

Stabilization Pond ◽

Waste Stabilization Pond ◽

Waste Stabilization ◽

Biochemical Degradation

Pilot scale “Waste Stabilization pond” was evaluated for treating high quality waste water using aerobic process. The method involved the measure of the molecular oxygen utilized during a specified incubation period for the biochemical degradation of organic matter and oxygen used to oxidize inorganic material. Operation of the pond involved engineering construction to reduce the risk of soil and groundwater contamination. Calibration of the model using laboratory tests showed BOD for 5, 10 and 15 days as 101.9mg/l. 273.3mg/l and 426mg/l respectively. Pond efficiency was 76.19%. The design experience and post design results provided knowledge about the efficiency of a waste stabilization pond and the basis of recommendation and practice in developed cities.

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Removal of nitrogen and phosphorus from waste stabilization pond effluents using aerated blast-furnace-slag filters

Future Energy, Environment and Materials ◽

10.2495/feem130861 ◽

2014 ◽

Cited By ~ 1

Author(s):

R. Hamdan ◽

D.D. Mara

Keyword(s):

Blast Furnace ◽

Blast Furnace Slag ◽

Nitrogen And Phosphorus ◽

Stabilization Pond ◽

Waste Stabilization Pond ◽

Waste Stabilization ◽

Furnace Slag

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Sewage Treatment by Waste Stabilization Pond Systems

Journal of Energy and Natural Resource Management ◽

10.26796/jenrm.v3i1.52 ◽

2018 ◽

Vol 3 (1) ◽

pp. 7-14

Author(s):

J. Kenneth, R. S. Suglo

Keyword(s):

Management Practices ◽

Sewage Treatment ◽

Oxygen Demand ◽

Wastewater Management ◽

Stabilization Pond ◽

Waste Stabilization Pond ◽

Quality Guidelines ◽

Waste Stabilization ◽

High Reduction ◽

Wastewater Samples

Sewage generated in Ghana is commonly discharged into the environment without any form of treatment to reduce the degree ofcontamination and mitigate potential public health and environmental issues. Although some attempts have been made in someparts of Ghana to utilize the waste stabilization pond (WSP) system to treat domestic sewage, the ponds often fail to achievetheir purpose due to lack of basic maintenance and supervision. To assess the utility of the WSP system for treating sewage,wastewater samples were collected from the raw sewage, anaerobic, facultative and maturation ponds of WSPs at Obuasi inGhana, and analyzed for physicochemical and microbiological contaminants. The results show that the final pond effluent meetsrecommended microbiological and chemical quality guidelines. The waste stabilization pond system demonstrates high removalefficiencies of wastewater contaminants. The biochemical oxygen demand, total suspended solids, nitrate and faecal coliformsreduction efficiencies of 97.3%, 97.6%, 83.3% and 99.94% respectively are highly significant, and compare well with reportedremoval efficiencies in the literature. Additionally, the ponds have high reduction efficiencies for heavy metals and pathogenicmicroorganisms. The wastewater treatment system complies with standard wastewater management practices, and provides auseful method for treating and disposing wastewater in Ghana.

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

Water Science & Technology ◽

10.2166/wst.1995.0497 ◽

1995 ◽

Vol 31 (12) ◽

pp. 285-290 ◽

Cited By ~ 4

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 .

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