asset management process mrme conference paper 2011

8/10/2019 Asset Management Process MRME Conference Paper 2011

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Al Ansab Membrane based

Sewage Treatment Plant

First Step towards Muscat Wastewater Project to achieve

Protection of Health & Environment, Water Conservation and

reducing Carbon Foot Print


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150,000

160,000

170,000

180,000

190,000

200,000

210,000

220,000

230,000

Estimated Wastewater generation based on Initial Master Plan 2008 & 2010


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Sewage Treatment Plant capacities and Location

Sl.

No.

Name of the STP Catchment Served Current

Capacity

(m3/day)

Planned Ultimate

Capacity

(m3/day)

1 Alansab STP Wilyat Bowsher 54,000 84,000

2 Aseeb STP Wilayat Aseeb 60,000 80,000

3 Darsait STP Wilayat Muscat & Mutrah 36,000 50,000

4 Amerat STP Wilayat Amerat & Hajir 18,000 36,000

5 Quyiyat STP Wilayat Quriyat 3,500 6,500


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TECHNOLGY SELECTION

Reuse - Health risks, Technology options available, Foot print to meet the

site conditions, Environmental impact, phasing, Life cycle costs and

Sustainability merits

Old assets taken over by Haya - conventional technology with sand

filtrations

Helminthes Ova which should be less than 1 / Litre.

Biological membrane filtration process using Flat sheet membranes

with 0.4 micron pore size.


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HELMINTHES OVA


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Parameter UnitsInfluentDesignValues

Treated Effluentexpected /

designed values

Treated Effluentvalues as

required byConcession

Agreement

MECA Class A(agricultural irrigationpermissible limits)

(145/93)

BOD mg/l 310 5


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Treated effluent consistency in the quality of all the parameters includingViable Nematode Ova (reported values always < 1) in spite of shock loads &

high diurnal variations.

Evident from the 7 day moving average values of TE quality exceeds thequality requirements of national standards make it the highest quality to suit

the indirect reuse application - step away to achieve potable water quality

though advanced polishing treatment.

Biological sludge produced in the plant is dewatered to the centralizedcomposting plant to produce Biosolids through Open Windrow Technology

meeting US EPA Class A for use as natural organic fertilizers

HIGHLIGHTS


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Currently, Al Ansab Sewage Treatment Plant - largest flat sheet membranes sewagetreatment plant Commissioned and Operated.

The plant is producing an effluent quality that exceeds the national standards and Title 22 ofUS standards for indirect reuse.

Haya Water is also continuing its research and evaluations in developing alternate treatment

options inline with Technology advancements.

Haya Water progressing in the study of various options along with Sultan Qaboos Universityteam for maximizing TE utilization through Agricultural reuse, Aquifer recharge, District

Cooling, etc. through involvement of various Government bodies to achieve a common

objective of water conservation.

Haya waters ambitious aim is to maximize water reuse to support conservation of potablewater considering Treated Effluent as alternative water resources for indirect reuse & to

reduce carbon footprint to achieve the nation objectives for sustainable development.

CONCLUSION


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THANK YOU

asset management process mrme conference paper 2011

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