cf116 - malta south sewage treatment...
TRANSCRIPT
CF116 - Malta South Sewage Treatment Infrastructure
Operational Programme I 2007 -2013
Stefan CachiaManagerWastewater Treatment & Polishing Plants 26th April 2017
OVERVIEW OF PRESENTATION
� CF116 - Background and Scope
� CF116 - Key Infrastructure
� CF116 - Project Financing & Timeline
� CF116 - National Wastewater Treatment Context
� Ta’ Barkat UWWTP – pre-Site Visit Brief
� Synergy with MORISO and Reclamation Plant Project
CF116 - BACKGROUND & SCOPE
Project Inception & Studies
� Requirement stemmed from environmental and health considerationspertaining to raw wastewater discharges to sea.
� These concerns were initially addressed in 1975 when the MediterraneanAction Plan (MAP) was adopted. This was followed by the Barcelona‘Convention for the Protection of the Mediterranean Sea’ in 1976. Maltaratified both these agreements.
� A Sewerage Master Plan (COWI 1992) was drawn up to appraise the island’swastewater transmission and treatment infrastructure. A number of projects wereproposed to strengthen the key collection and transmission network. Therequirement for three new wastewater treatment plants was identified at theheart of this plan.
� The Sewerage Master Plan was subsequently revisited during 2000 through afeasibility study focusing on the South of Malta (Sewerage InfrastructuralUpgrading in the South of Malta – KOCKS 2000 ). Study took into account theprevailing situation of the sewerage network and elaborated further on a numberof alternative wastewater transmission and treatment options.
CF116 - BACKGROUND & SCOPE
Sewerage Master Plan - 1992
GOZO CATCHMENT
CF116 - BACKGROUND & SCOPE
Sewerage Master Plan - 1992
MALTA NORTH CATCHMENT
CF116 - BACKGROUND & SCOPE
Sewerage Master Plan - 1992
MALTA SOUTH CATCHMENT
CF116 - BACKGROUND & SCOPE
Sant Antnin Wastewater Treatment Plant
� Plant has been in operation since 1982.
� The plant underwent an extensive refurbishment in1998. Civil Works, Mech/Elec equipment renovation andintroduction of automation.
� Currently treats an annual average of 4,000-5,000m3/day of sewage a day, meeting the irrigation waterdemand of circa 240 hectares of arable agriculturalland.
� High conductivity effluent (10,000 microS) is an issuethat will be addressed via projects targeting seawaterinfiltration and the NEW water reclamation plants.
CF116 - BACKGROUND & SCOPE
Sant Antnin Wastewater Treatment Plant
Circa 80% of wastewater produced on the island was formerly discharged through a 700m submarine outfall at WiedGħammieq next to Rinella in Kalkara.
CF116 - BACKGROUND & SCOPE
Malta South Situation before June 2011
When the sewage pumping station at Wied Għammieqpumping used to malfunction, the situation worsened andthe whole shoreline extending all the way to Żonqor Point(Marsascala) was contaminated.
Former sewage pumping station atWied Għammieq. Station was 30years old and in need of replacement.
The coastal area was characterized by regular crude sewage discharges
CF116 - BACKGROUND & SCOPE
Malta South Situation before June 2011
CF 116 – KEY INFRASTRUCTURE
Project Components
The KOCKS 2000 Feasibility Study identified the following projects forstrengthening the collection system (UWWD 91/271/EC – Article 3) andtreatment (Article 4) of 80% of wastewater generated by the MalteseIslands, and namely:
1. The construction of a new 500,000 PE Urban WWTP at Ta’ Barkat inXghajra
2. The construction of a new wastewater pumping station at Rinella inKalkara
3. The upgrading of an existing wastewater pumping station in Xghajra.
4. Construction of a new 1.7 km gallery from Rinella to Barkat
5. Construction of a 1 km submarine pipeline
The above interventions formed the final scope of Project CF116 –Cohesion Fund Programme – 2007-2013.
CF 116 – KEY INFRASTRUCTURE
Layout of the Various Components
Component 1 - UWWTP
CF 116 – KEY INFRASTRUCTURE
Project Components
Component 2 – Rinella PS
Substation, Generator and Control Room
CF 116 – KEY INFRASTRUCTURE
Project Components
Component 2 – Rinella PS
Pumping Station Sump
CF 116 – KEY INFRASTRUCTURE
Project Components
Component 4 - Gallery
Tunnel Lining – Shotcrete
CF 116 – KEY INFRASTRUCTURE
Project Components
Component 4 - Gallery
U – Channel installation
CF 116 – KEY INFRASTRUCTURE
Project Components
Component 5 - Outfall
Towing of pre-fabricated pipeline from Norway
CF 116 – KEY INFRASTRUCTURE
Project Components
Component 5 - Outfall
Concrete sinkers attached to floating pipeline
CF 116 – KEY INFRASTRUCTURE
Project Components
CF 116 – PROJECT FINANCING & TIMELINE
Eligible Cost
(net of VAT)
EU Co-finance
MT Co-finance
Other Funding Gap
Total
€68 mill. €57.8 mill.
85%
€10.2 mill. €12.1 mill. €0 €80.1 mill.
CF 116 – PROJECT FINANCING & TIMELINE
Ref: Activity Completion1 Urban Wastewater Treatment
PlantPlant fully operational – Q1 2011
2.1 Rinella Pumping Station : Civil Works
Civil Works completed - Q1 2011
2.2 Rinella Pumping Station : Mechanical & Electrical Works
Equipment installed – Q4 2010
2.3 Rinella Pumping Station : Standby Generator Supply
Generator delivered, tested and commissioned – Q4 2010
3 Xghajra Pumping Station –Mechanical & Electrical Works
Project installation, testing and commissioning - completed Q3 2011
4 Gallery from Rinella to Ta’ Barkat
Gallery was completed – Q2 2010.
5 Submarine Outfall Operational – Q2 2011 Full completion – Q4 2011
CF 116 – PROJECT FINANCING & TIMELINE
TENDER LAUNCH 13 Apr 2007
AWARD & CONTRACTING 12 Jun 2008
MEPA PERMIT AND ACCESS TO SITE
15 Dec 2008
PLANT INAUGURATED 02 Jun 2011
Mobilisation - Dec 2008
CF 116 –TIMELINE & FINANCING
Construction Progress - UWWTP
Progress Jun 2009
Progress - Dec 2009
CF 116 –TIMELINE & FINANCING
Construction Progress - UWWTP
Progress - Dec 2010
Progress March 2011
CF 116 –TIMELINE & FINANCING
Construction Progress - UWWTP
June 2011 – Full Completion
CF 116 –TIMELINE & FINANCING
Construction Progress - UWWTP
Ta’ Mgarr ix-Xini44,000 PE
Nov 2007
Ic-Cumnija60,000 PE
Oct 2008
Wastewater Treatment Plant Locations
Ta’Barkat500,000 PE
Jun 2011
Sant Antnin120,000 PE
1982
Ta’ Barkat UWWTP – pre-Site Visit Brief
Treatment Plant Locations
Ta’ Barkat UWWTP – pre-Site Visit Brief
Gozo STP Aerial View
Ta’ Barkat UWWTP – pre-Site Visit Brief
North STP Aerial View
Ta’ Barkat UWWTP – pre-Site Visit Brief
Barkat STP Aerial View
Ta’ Barkat UWWTP – pre-Site Visit Brief
Plant Annual Comparative Stats - 2016
Treated Volume
(million m 3)
Sewage Sludge Disposed to
Landfill (tonnes)
Annual Energy Consumption
(GWh)
South STP 17.4 25,379 11.71 GWh +(5.4 GWh RES)
North STP 3.7 3,577 2.08
Gozo STP 1.4 7,075 2.46
Sant Antnin STP 1.4 0.0 1.87
Effluent reused at Sant Antnin STP – 1.05 million
Ta’ Barkat UWWTP – pre-Site Visit Brief
Conventional UWWTP Layout
Ta’ Barkat UWWTP – pre-Site Visit Brief
DENSADEG Primary Treatment
Ta’ Barkat UWWTP – pre-Site Visit Brief
BIOFOR Integrated Secondary Treatment
Ta’ Barkat UWWTP – pre-Site Visit Brief
Plant Layout
Thank You