SAES-A-120

Engineering Standard SAES-A-120 10 November 2015 Regulated Vendors List for Wastewater Treatment Equipment Document Responsibility: Environmental Standards Committee

Saudi Aramco DeskTop Standards Table of Contents 1

Scope……………………………….....……...... 2

2

Conflicts and Deviations…………………........ 2

3

References…………………………………...... 2

4

Definitions……………………………….....…... 2

5

General…………………………………….....… 3

6

Acceptable Manufacturers Listing………....... 4

Previous Issue Date: 30 September 2014 Next Planned Update: 30 September 2019 Revised paragraphs are indicated in the right margin Primary contact: Al-Aama, Subhi Abdulhadi (aamama) on +966-13-8800497 Copyright©Saudi Aramco 2015. All rights reserved.

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Document Responsibility: Environmental Standards Committee SAES-A-120 Issue Date: 10 November 2015 Next Planned Update: 30 September 2019 Regulated Vendors List for Wastewater Treatment Equipment

1

Scope This standard identifies acceptable commodities for Wastewater Treatment Equipment Class 32 materials.

2

3

Conflicts and Deviations 2.1

Any conflicts between this standard and other applicable Saudi Aramco Engineering Standards (SAESs), Materials System Specifications (SAMSSs), Standard Drawings (SASDs), or industry standards, codes, and forms shall be resolved in writing by the Company or buyer representative through the Manager, Environmental Protection Department of Saudi Aramco, Dhahran.

2.2

Direct all requests to deviate from this standard in writing to the Company or Buyer representative, who shall forward such requests to the Manager, Environmental Protection Department of Saudi Aramco, Dhahran. The EPD Manager shall follow internal Company procedure SAEP-133 to process the request.

References The following is a summary of the Saudi Aramco documents that have been mentioned within this standard:  Saudi Aramco Engineering Procedure SAEP-133

Instructions for the Development of a “Regulated Vendors List” Engineering Standard

 Saudi Aramco Engineering Standards

4

SAES-A-103

Discharges to the Marine Environment

SAES-A-104

Wastewater Treatment, Reuse and Disposal

Definitions 9COM Material #: Commodity material number. Acceptable: Approval is not required to place a purchase order for the product. After the order has been placed, the Supplier of this product must ensure that he complies with all aspects of the purchasing contract (e.g., must meet the Saudi Aramco Materials System Specification).

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Document Responsibility: Environmental Standards Committee SAES-A-120 Issue Date: 10 November 2015 Next Planned Update: 30 September 2019 Regulated Vendors List for Wastewater Treatment Equipment

Approval: Written authorization by the Manager, Environmental Protection Department, Saudi Aramco, Dhahran. He shall approve revisions to the RVL standards and the SAP-based RVLs, and shall also approve manufacturers on a one- time basis. License Agreement: A contract between a Supplier and an owner of rights to an equipment design, allowing a Supplier to either (1) assemble the equipment using all the pieces provided by the design owner or (2) assemble the eqipment using a combination of pieces provided by the design owner and pieces manufactured by the licensee to the design owner’s deatailed drawings/specifications. The contract between the licensor and licensee would (1) require the licensee to follow the licensor manufacturing procedures and be routinely audited by the licensor for compliance and (2) require the equipment to be marked and labeled using the licensor’s brand name. Made: Created from raw materials and/or assembled by the manufacturer. Manufacturer: The Manufacturer is the organization that constructs all or a component part of the 9COM equipment. All companies constructing component pieces or supplying the subcomponent equipment must be an Saudi Aramco approved Supplier (for example all valves, pumps, instruments and any other component pieces of a final product must be from Saudi Aramco approved Suppliers). The Manufacturer can be either (1) the owner of the brand name of the equipment or (2) a licensee that has a license agreement to construct this equipment under the direction of the Approved Supplier (the Approved Supplier is responsible to guarantee this equipment as if they had constructed it themselves). SAMSS: “Saudi Aramco Materials System Specification” SAP: The Saudi Aramco corporate computer system that includes description of the wastewater treatment equipment commodities and list of currently approved manufacturers. Supplier: The person/company, etc., who is responsible to provide the equipment to Saudi Aramco. 5

General 5.1

Procurement of a product made by a manufacturer not listed as an approved manufacturer in Saudi Aramco SAP system is not allowed without approval. Requests for approval of an alternate manufacturer must be supported by documentation identifying how the alternate manufacturer would better serve Saudi Aramco over the approved manufacturers. Commentary Note: If the request to procure from an alternate manufacturer is not approved, the approval authority is under no obligation to present the reasons for the refusal. Page 3 of 11

Document Responsibility: Environmental Standards Committee SAES-A-120 Issue Date: 10 November 2015 Next Planned Update: 30 September 2019 Regulated Vendors List for Wastewater Treatment Equipment

5.2

6

The manufacturer listings within Saudi Aramco SAP system shall be interpreted in the following manner: 5.2.1

Manufacturer listed without limitation: All products from the manufacturer in the given category (9COM material and, if applicable, SAMSS) are acceptable.

5.2.2

Manufacturer listed with a limitation: Only the product that meets the limitation is acceptable. If noted as being manufactured “Under License”, only products made under the terms of the license agreement are acceptable.

5.2.3

Manufacturer listed with a specific location: Only products made in the specific location(s) or area(s) are acceptable.

Acceptable Manufacturers Listing Refer to Saudi Aramco SAP system for the approved manufacturers for the following 9COMs: Equipment Description: AERATION SYSTEM-SURFACE AERATORS 9COM MATERIAL #: 6000012659 Specification: SAES-A-104 AERATION SYSTEM-SURFACE AERATORS: Surface aerators to add oxygen into wastewater in the aeration basins, tanks, and ponds needed for the biological treatment of wastewater. Equipment Description: AERATION SYSTEM-VENTURI AERATORS 9COM MATERIAL #: 6000012700 Specification: SAES-A-104 AERATION SYSTEM-VENTURI AERATORS: A jet aerator is an aspirating device, works by the principle of venturi effect to add oxygen into wastewater. Equipment Description: BELT FILTER PRESSES SANITARY SLUDGE DEWATERING 9COM MATERIAL #: 6000008730 Specification: SAES-A-104 BELT FILTER PRESSES SANITARY SLUDGE DEWATERING: Belt Filter Presses, machines that increase the solids of 1.0% aerobically digested activated sludge to 25 % by mechanical pressure separation. Page 4 of 11

Document Responsibility: Environmental Standards Committee SAES-A-120 Issue Date: 10 November 2015 Next Planned Update: 30 September 2019 Regulated Vendors List for Wastewater Treatment Equipment

Equipment Description: CLARIFIER SOLIDS COLLECTION EQUIPMENT 9COM MATERIAL #: 6000002471 Specification: SAES-A-104 CLARIFIER SOLIDS COLLECTION EQUIPMENT: Solids and scum collection and removal equipment for primary and secondary clarifiers and sedimentation tanks designed for efficient solids removal and corrosion resistance. Equipment Description: CONTROL UNIT, WASTEWATER ODOR (ACTIVATED CARBON) 9COM MATERIAL #: 6000010084 Specification: SAES-A-104 CONTROL, WASTEWATER ODOR (ACTIVATED CARBON): Carbon filter that uses adsorption process onto porous activated carbon surface used to remove air contaminants that cause odor in wastewater collection and treatment streams. Equipment Description: DECANTER CENTRIFUGES SANITARY SLUDGE DEWATERING 9COM MATERIAL #: 6000012706 Specification: SAES-A-104 DECANTER CENTRIFUGES SANITARY SLUDGE DEWATERING: Decanter centrifuges machines that increase the solids of 1.0% aerobically digested activated sludge to 25 % by mechanical centrifuge separation. Equipment Description: ODOR CONTROL-CHEMICAL SCRUBBER 9COM MATERIAL #: 6000012655 Specification: SAES-A-104 ODOR CONTROL-CHEMICAL SCRUBBER: Chemical counter current scrubbers (acid and caustic wet scrubbing) removes air contaminants such as hydrogen sulfide and other reduced sulfur compounds, and Ammonia and other nitrogen compounds that cause odor in wastewater collection and treatment, by mass transfer absorption via contact of the air stream with aqueous solution in the scrubbing chamber. Equipment Description: OFFSHORE WASTEWATER TREATMENT-BIOLOGICAL 9COM Material #: 6000012702 Specification: SAES-A-104 OFFSHORE WASTEWATER TREATMENT-BIOLOGICAL: Biological (Secondary) treatment systems or Membrane Bioreactor (MBR) type for treating sewage to be discharged to the marine environment from an offshore facility or marine vessel. Page 5 of 11

Document Responsibility: Environmental Standards Committee SAES-A-120 Issue Date: 10 November 2015 Next Planned Update: 30 September 2019 Regulated Vendors List for Wastewater Treatment Equipment

Equipment Description: OFFSHORE WASTEWATER TREATMENT-MACERATION 9COM MATERIAL #: 6000010097 Specification: SAES-A-103 OFFSHORE WASTEWATER TREATMENT-MACERATION: A crusher, a shredding, a grinder machine, a chopper pump that reduces solids in the wastewater to small pieces prior to discharging to the marine environment. The treated wastewater shall not produce visible floating solids or cause discoloration of the surrounding water. Equipment Description: OIL/WATER SEPARATION-DISSOLVED AIR FLOTATION (DAF) / INDUCED AIR FLOTATION (IAF) 9COM Material #: 6000012704 Specification: SAES-A-104 OIL/WATER SEPARATION-DISSOLVED AIR FLOTATION (DAF) / INDUCED AIR FLOTATION (IAF): Secondary oil / water vessel to separate non-dissolved or emulsified oil and solids from oil water by gravity. Induced Gas Flotation (IGF) / Dissolved Gas Flotation (DGF) use gas bubbles to remove oil droplets and suspended solids not removed by primary water treatment. Equipment Description: OIL/WATER-OIL SKIMMERS 9COM MATERIAL #: 6000012705 Specification: SAES-A-104 OIL/WATER-OIL SKIMMERS: a drum, disk surface oil skimmer, or double arm internal float oil skimmer that removes surface oils floating on oily water rely on adhesion of oil to the surface of the mechanism. Equipment Description: OILY WASTEWATER CENTRIFUGAL 9COM MATERIAL #: 6000010114 Specification: SAES-A-104 OILY WASTEWATER CENTRIFUGE: Disc stack centrifuges, Centrifuge Decanters, and Tricanters 3-phase separation. They separate water and solids from the oil in mixtures of immiscible liquids by mechanical separation using centrifugal force. Equipment Description: OILY WASTEWATER FILTERS-WALNUT SHELL MEDIA 9COM MATERIAL #: 6000012708 Specification: SAES-A-104 OILY WASTEWATER FILTERS-WALNUT SHELL MEDIA: A deep bed nutshell filter of 100% black walnut shells designed to remove oily contaminants from oily Page 6 of 11

Document Responsibility: Environmental Standards Committee SAES-A-120 Issue Date: 10 November 2015 Next Planned Update: 30 September 2019 Regulated Vendors List for Wastewater Treatment Equipment

water. The scrubbing mechanism for removing the oil from the walnut shells shall use either an external scrubber or an internal scrubber technology that does not require entry into the vessel to perform routine maintenance. Equipment Description: OILY WASTEWATER MULTIMEDIA FILTERS 9COM MATERIAL #: 6000012707 Specification: SAES-A-104 OILY WASTEWATER MULTIMEDIA FILTERS: A deep bed filter that uses multiple selected grades of media - coarse anthracite / sand, etc., to remove the bulk of the solids and some of the insoluble oil from oily water. Equipment Description: OILY WATER API SEPARATORS 9COM MATERIAL #: 6000010099 Specification: SAES-A-104 OILY WATER API SEPARATORS: Primary elevated rectangular tanks that separate free oil from water by gravity and separates oily sludge and solids from water by chain and flight scrapers. They shall not include auxiliary plate packs. The Design shall be as per SAES-A-104, Section 8.1.2 requirements. Equipment Description: OILY WATER INCLINED PLATES INTERCEPTORS 9COM MATERIAL #: 6000014117 Specification: SAES-A-104 OILY WATER INCLINED PLATES INTERCEPTORS: Gravity separators inclined plates interceptors contain inclined plates pack for removing oil and suspended solids from oily wastewaters where the oily wastewater being treated contains very small concentrations of solids and oily sludge. The Design shall be as per SAES-A-104, Section 8.1.2 requirements and include an equalization tank upstream of the inclined plates interceptor separator. Equipment Description: PRELIMINARY TREATMENT- MECHANICAL COARSE BAR SCREEN 9COM MATERIAL #: 6000008724 Specification: SAES-A-104 PRELIMINARY TREATMENT - MECHANICAL COARSE BAR SCREEN: Step inclined screens that have 20 mm screen openings as the first step in the Preliminary Treatment located at headworks of wastewater treatment plants. It removes coarse and bulky material and therefore protects downstream equipment.

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Document Responsibility: Environmental Standards Committee SAES-A-120 Issue Date: 10 November 2015 Next Planned Update: 30 September 2019 Regulated Vendors List for Wastewater Treatment Equipment

Equipment Description: PRELIMINARY TREATMENT-DEGRITTER 9COM MATERIAL #: 6000012657 Specification: SAES-A-104 PRELIMINARY TREATMENT-DEGRITTER: Aerated or vortex grit chambers with mechanical grit removal, grit washing and classifying equipment, level sensors, and flushing and fluidizing facilities located in the headworks of wastewater treatment plants. Equipment Description: PRELIMINARY TREATMENT-FINE SCREEN 9COM MATERIAL #: 6000012658 Specification: SAES-A-104 PRELIMINARY TREATMENT-FINE SCREEN: Perforated, step, wedgewire, and rotary screens that have 6mm screen openings for conventional treatment or 1-3 mm screen openings for Membrane Bioreactor (MBR) plants located after the degritters. Equipment Description: PRELIMINARY TREATMENT-SANITARY WASTEWATER GRINDER 9COM MATERIAL #: 6000010093 Specification: SAES-A-104 PRELIMINARY TREATMENT-SANITARY WASTEWATER GRINDER: comminuting devices that reduce the size of solids to less than 6 mm located after the bar screens and upstream of the grit removal chambers in the headworks of wastewater treatment plants. Equipment Description: SANITARY WASTEWATER FILTERS 9COM MATERIAL #: 6000010110 Specification: SAES-A-104 SANITARY WASTEWATER FILTERS: Tertiary filters that have California Title 22 Certification for water reuse, which will produce effluent quality suitable for unrestricted reuse applications. Equipment Description: SANITARY WASTEWATER PACKAGE TREATMENT PLANT 9COM MATERIAL #: 6000010115 Specification: SAES-A-104 SANITARY WASTEWATER PACKAGE TREATMENT PLANT: a prefabricated complete biological sanitary wastewater treatment system that complies with SAES-A-104 requirements.

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Document Responsibility: Environmental Standards Committee SAES-A-120 Issue Date: 10 November 2015 Next Planned Update: 30 September 2019 Regulated Vendors List for Wastewater Treatment Equipment

Equipment Description: TANKS, AND FABRICATION PLANTS ALL WASTEWATER 9COM MATERIAL #: 6000010096 Specification: SAES-A-104 TANKS AND FABRICATION PLANTS ALL WASTEWATER: Assembly of the wastewater main equipment (API, inclined plates interceptor, membrane bioreactor (MBR), etc.) manufacturer’s package including atmospheric steel tanks for wastewater applications. Equipment Description: UNIT, OILY WASTEWATER MEMBRANE BIO REACTORS 9COM MATERIAL #: 6000012709 Specification: SAES-A-104 UNIT, OILY WASTEWATER MEMBRANE BIO REACTORS: An advanced lowpressure membrane biological treatment system producing effluent quality that meets Reverse Osmosis (RO) pretreatment requirements. The main system components have to be manufactured by the approved vendor and they consist of the anoxic, aerobic, and sludge collection/aerobic digester tanks, the membrane operating system and the associated piping, controls, instrumentation, and pumps. Any major or supplemental component if not manufactured by the approved vendor has to be purchased from a Saudi Aramco’s approved suppliers. The membranes shall be submerged membranes. Cross flow membranes are not acceptable. The Design shall be as per SAES-A-104, Section 9.4 requirements. Equipment Description: UNIT, SANITARY WASTEWATER MEMBRANE BIO REACTORS 9COM MATERIAL #: 6000010111 Specification: SAES-A-104 UNIT, SANITARY WASTEWATER MEMBRANE BIO REACTORS: An advanced low-pressure membrane biological treatment system producing effluent quality that meets California Title 22 requirements for reuse. The main system components have to be manufactured by the approved vendor and they consist of the anoxic, aerobic, and sludge collection/aerobic digester tanks, the membrane operating system and the associated piping, controls, instrumentation, and pumps. Any major or supplemental component if not manufactured by the approved vendor has to be purchased from a Saudi Aramco’s approved supplier. The membranes shall be submerged membranes. Cross flow membranes are not acceptable. The Design shall be as per SAES-A-104, Section 9.3 requirements. Equipment Description: UNIT, WASTEWATER DISINFECTION-CHLORINATION 9COM MATERIAL #: 6000010095 Specification: SAES-A-104 Page 9 of 11

Document Responsibility: Environmental Standards Committee SAES-A-120 Issue Date: 10 November 2015 Next Planned Update: 30 September 2019 Regulated Vendors List for Wastewater Treatment Equipment

UNIT, WASTEWATER DISINFECTION-CHLORINATION: A skid mounted system to introduce chlorine compounds, sodium hypochlorite, in liquid or solid forms to the water or wastewater, generally for the purpose of disinfection, or chemical oxidation and odor control. The unit shall include a day tank, metering pumps (including standby pumps), piping, instrumentation, and local control panel that can automatically or manually control the chlorine based on a dose set point or flow rate. Equipment Description: UNIT, WASTEWATER PRELIMINARY TREATMENT 9COM MATERIAL #: 6000012656 Specification: SAES-A-104 UNIT, WASTEWATER PRELIMINARY TREATMENT: Combination of Preliminary treatment units; grinder, grit removal, FOG removal, and fine screen for small flow wastewater treatment plants. Equipment Description: UNIT. WASTEWATER AERATION (DIFFUSERS) 9COM MATERIAL #: 6000010094 Specification: SAES-A-104 UNIT, WASTEWATER AERATION (DIFFUSERS): Air Diffusers also known as bubble diffusers used for the addition of oxygen to wastewater in the lower part at the aeration tanks or basins needed for the biological treatment of wastewater. Materials of construction shall be appropriate for the salinity of the wastewater being treated. Only coarse bubble diffusers are acceptable for use in Saudi Aramco because of the high Total Dissolved Solids (TDS) wastewater and the carbonate sand that is mixed with all wastewater in Saudi Arabia. Other types of diffusers shall be reviewed in a case by case uses. Approval of alternative diffusers shall be prepared and submitted to the General Supervisor, Environmental Engineering Division (EED) for approval. A letter of approval, signed by the General Supervisor, EED, shall be included as an attachment to the project specifications. Equipment Description: WASTEWATER DISINFECTION-ELECTROLYSIS 9COM MATERIAL #: 6000012701 Specification: SAES-A-104 WASTEWATER DISINFECTION-ELECTROLYSIS: Seawater electrochlorination systems produce disinfecting agent sodium hypochlorite from seawater due to an electric current being passed through the water for marine and offshore applications. Equipment Description: WASTEWATER FLOW DISTRIBUTION DEVICES 9COM MATERIAL #: 6000010112 Specification: SAES-A-104 Page 10 of 11

Document Responsibility: Environmental Standards Committee SAES-A-120 Issue Date: 10 November 2015 Next Planned Update: 30 September 2019 Regulated Vendors List for Wastewater Treatment Equipment

WASTEWATER FLOW DISTRIBUTION DEVICES: Normally concrete splitter boxes that include Downward Opening Weir Gates to distribute the wastewater flow into downstream wastewater equipment placed in parallel. Downward Opening Weir Gates are used for flow and/or level control in applications where water flows over the gate. Downward Opening Weir Gates have a reinforced slide and are solidly built in one piece for easy installation. Equipment Description: WASTEWATER MIXERS, STATIC, SLOW RAPID 9COM MATERIAL #: 6000010083 Specification: SAES-A-104 WASTEWATER MIXERS, STATIC, SLOW RAPID: Vertical or side mixers for wastewater process applications. Equipment Description: WASTEWATER ROTATING BIOLOGICAL CONTACTOR 9COM MATERIAL #: 6000010113 Specification: SAES-A-104 WASTEWATER ROTATING BIOLOGICAL CONTACTOR: A Rotating Biological Contactor (RBC) is an attached growth, aerobic, biological wastewater treatment process. An RBC consist of a series of closely spaced circular disks that are submerged in wastewater and rotated through it with a mechanical drive. As the RBC disks rotate out of the wastewater, aeration is accomplished by exposure to the atmosphere. Wastewater flows down through the disks where biological treatment and solids sloughing occurs. Equipment Description: WASTEWATER SLUICE GATES 9COM MATERIAL #: 6000013034 Specification: SAES-A-104 WASTEWATER SLUICE GATES: A sluice gate is a valve used at the end of a pipe line or to cover an opening in a wall and is not an in-line valve. Sluice gates are raised and lowered by means of a stem or rod using a manually operated screw stem hoist, an electrically driven screw stem hoist or a hydraulic cylinder. Sluice gates are mounted to a pipe flange, to a wall casting or thimble embedded in the concrete. Sluice gates are not normally used in open channels where slide gates are normally used for seating flow conditions. Slide gates are not acceptable for use in tank walls and cannot be substituted for sluice gates.

30 September 2014 10 November 2015

Revision Summary New Saudi Aramco Engineering Standard. Editorial revision to the descriptions of 9COM 6000012705 and 9COM 6000010115.

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