3-02 25-196-B Specification - Dry Media Procurement.pdf

SPECIFICATION – DRY MEDIA PROCUREMENT PAGE 1 OF 6

25-196-B ACTIVATED CARBON AND EXCHANGE SERVICES

SPECIFICATION

DRY MEDIA PROCUREMENT

PART 1 – GENERAL

1.01 DESCRIPTION

North Texas Municipal Water District (NTMWD) is seeking a vendor to provide the following services:

1. Procurement and delivery throughout the duration of the contract of activated carbon and permanganate-impregnated polishing medias to the NTMWD for odor control systems.

2. Activated carbon media to be supplied subdivided by two Hydrogen Sulfide (H2S) Breakthrough Capacities, 0.2, and 0.3 g H2S/cc carbon. Activated carbon media shall be able to be layered with other permanganate-impregnated polishing media for adsorption of volatile and other organic compounds.

3. Procurement and delivery of new polypropylene mesh media retaining screen of sufficient strength to hold activated carbon media and/or permanganate-impregnated polishing media without tearing or impeding airflow.

4. Procurement and delivery of media vessels on an as needed basis. Metal canister shall be 110-gallon open head drum as referenced in Attachment A – Metal Canister Drawing. Fiberglass reinforced plastic (FRP) canister shall be a 110-gallon FRP canister referenced in Attachment B - FRP Canister Drawings.

1.02 DEFINITIONS

Where used in this Section, the following terms are defined as follows:

1. SUPPLIER: Virgin Activated Carbon Media, Permanganate-Impregnated Carbon Media, Polypropylene Mesh Media Retaining Screen, Metal Vessel and/or FRP Vessel Supplier

2. OWNER: North Texas Municipal Water District

3. CARBON: Virgin Activated Carbon Media

4. POLISHING MEDIA: Permanganate-Impregnated Polishing Media

5. MEDIA: Activated Carbon Media and/or Permanganate-Impregnated Polishing Media

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6. MEDIA SCREEN: Polypropylene Mesh Media Retaining Screen

7. MEDIA VESSEL: Metal Canister or Fiberglass Reinforced Plastic Canister

PART 2 – TECHNICAL REQUIREMENTS

A. CARBON shall be virgin (i.e. not reactivated). CARBONS regenerated onsite with hydroxides, water or other processes to meet specified H2S Breakthrough Capacities will not be accepted. No alkali or caustic impregnated CARBON will be accepted

1. CARBON shall be derived from acceptable raw materials including coconut shell, lignite coal, subbituminous coal, or bituminous coal.

2. CARBON must be visually free of clay, dirt and deleterious material.

3. CARBON must be suitable for continuous removal of H2S and other odor-causing volatile and other organic compounds such as mercaptans, indoles, and skatoles found in gases emitted during wastewater conveyance and treatment.

4. CARBON pressure drop must not exceed 1.7” w.c. per foot of bed depth at a media bed face velocity of 50 fpm.

5. The CARBON shall be one of the following:

a. Evoqua Midas® OCM

b. ECS Sulfadsorb HC

c. PureAir Filtration Sulphasorb XL

d. Purafil Odorcarb Ultra Media

6. Even if included in the list of approved manufacturers, the CARBON manufacturer shall meet the following experience requirements:

a. The CARBON shall be produced by a manufacturer certified for ISO 9001:2000 quality standards.

b. The CARBON manufacturer shall have a minimum of fifteen (15) years’ experience manufacturing and shall submit proof via a Manufacturer’s Certificate and/or an Affidavit of Compliance.

c. The CARBON manufacturer shall have successfully provided the same type of CARBON to be provided under this specification to a minimum of fifteen

(15) wastewater conveyance or treatment installations in North America.

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7. The CARBON furnished shall meet the requirements throughout the specification and have adsorptive and physical characteristics as provided in Table 1:

TABLE 1 – Virgin Activated Carbon Properties

Parameter Value Test Procedure

H2S Breakthrough Capacity, g H2S/cc

0.2 min

0.3 min

ASTM D6646

Moisture, weight/weight % 15 max ASTM D2867 Hardness No. 95 min ASTM D3802 Apparent Density, g/ml 0.40 - 0.50 ASTM D2854 Mean Particle Diameter, mm 3.7 – 4.1 ASTM D2862 Sieve Size Greater than 4 Mesh (4.75 mm), % Less than 8 Mesh (2.38 mm), %

10 max 5 max

ASTM D2862

B. Permanganate-Impregnated Polishing Media: POLISHING MEDIA shall be porous spherical balls or cylindrical pellets formed from a combination of powdered activated alumina and other binders, and impregnated with potassium permanganate to provide adsorption, absorption, and oxidation of a wide variety of vapor phase odor compounds associated with wastewater conveyance and treatment.

1. POLISHING MEDIA shall be impregnated with 8% potassium permanganate (KMnO4), uniformly distributed throughout the media.

2. The POLISHING MEDIA shall be one of the following:

a. PureAir 8 Adsorbent Media, as manufactured by PureAir Filtration, LLC.

b. Purafil Permanganate-Impregnated Select Media (8%), as manufactured by Purafil Inc.

c. Or pre-approved equal.

3. The POLISHING MEDIA shall meet the requirements throughout the specification and have adsorptive and physical characteristics as provided in Table 2:

TABLE 2 – Permanganate Polishing Media Properties

Parameter Value Test Procedure Moisture, weight/weight % 15 max ASTM D2867 Apparent Density, g/ml 0.40 - 0.50 ASTM D2854 Abrasion, % max 3.7 – 4.1 ASTM D2862 Removal Capacities hydrogen sulfide (g/cc) sulfur dioxide (g/cc) nitric oxide (g/cc) formaldehyde (g/cc)

0.112, min 0.056, min 0.039, min 0.020, min

Varies

SPECIFICATION – DRY MEDIA PROCUREMENT PAGE 4 OF 6

C. MEDIA SCREEN shall be plastic mesh when, installed in direct contact with FRP or stainless steel grating, provides sufficient strength to hold CARBON and/or POLISHING MEDIA without tearing and does not impede air flow into and through CARBON and/or

POLISHING MEDIA.

1. MEDIA SCREEN shall meet the requirements throughout the specification and meet the physical requirements as provided in Table 3:

TABLE 3 – Polypropylene Mesh Media Retaining Screen

Parameter Standard Value Tolerance Unit of Measure Roll Width 145 (+ 1 / - 1) cm Thickness ISO 5084 725 µm Weight 190 g/m2 Mesh opening warp ASTM E11 840 (+ 35 / - 35) µm Mesh opening weft ASTM E11 840 (+ 35 / - 35) µm Mesh count warp ASTM E11 8 1/cm Mesh count weft ASTM E11 8 1/cm Yarn diameter warp 440 µm Yarn diameter weft 440 µm Open area 45 % Finish Stabilized, antistatic

D. MEDIA TESTING

1. NTMWD retains the right to have the MEDIA tested by its own lab and/or a certified laboratory of its choice at any time to verify the supplied media meets all specifications.

2. If supplied CARBON fails to meet the specified H2S Breakthrough Capacity, the successful bidder shall have the option to retest up to three times by a certified laboratory of NTMWD’s choosing at the expense of the successful bidder. Test results shall be averaged.

3. If supplied CARBON fails to meet the specified H2S Breakthrough Capacity by less than fifty (50) percent, it shall be the responsibility of the successful bidder to reimburse NTMWD on a prorated basis of double the deficient capacity. For example, if test results indicate the supplied CARBON has an H2S Breakthrough Capacity of ten (10) percent less than specified, the SUPPLIER shall reimburse NTMWD for twenty (20) percent of the expense of the defective media. If supplied CARBON has only fifty (50) percent of the specified H2S Breakthrough Capacity, the successful bidder shall reimburse NTMWD for the full expense of the defective media.

4. If supplied CARBON fails to meet the specified H2S Breakthrough Capacity by greater than fifty (50) percent, it shall be the responsibility of the SUPPLIER to replace the defective CARBON, reimburse NTMWD for all test expenses, and

SPECIFICATION – DRY MEDIA PROCUREMENT PAGE 5 OF 6

reimburse NTMWD for all costs associated with disposal and replacement of the CARBON if not replaced by the SUPPLIER within fourteen (14) calendar days.

5. If supplied MEDIA exceeds the allowable pressure drop, fails to meet the specified hardness number, or exceeds the moisture limit, it shall be the responsibility of the successful bidder to replace the defective MEDIA, reimburse NTMWD for all test expenses, and reimburse NTMWD for all costs associated with disposal and replacement of the defective MEDIA if not replaced by the SUPPLIER within fourteen (14) calendar days.

6. If at any point NTMWD believes the SUPPLIER cannot supply the MEDIA as specified, NTMWD may purchase the MEDIA from another supplier and any additional costs incurred shall be the responsibility of the SUPPLIER.

E. REQUIRED DOCUMENTATION

The SUPPLIER shall supply the following information with the bid and as requested by NTMWD:

a. Specification sheets with technical information.

b. Point of origin and manufacturer of the MEDIA.

c. Raw material of the MEDIA.

d. CARBON capacity test reports following ASTM D6646 protocol to verify H2S Breakthrough Capacity.

PART 3 – EXECUTION

3.01 GENERAL

A. NTMWD has approximately one hundred fifty (150) odor control systems that require MEDIA and MEDIA SCREEN. The estimated annual volume of .3 H2S Breakthrough Capacity CARBON is three thousand (3,000) cubic feet, .2 H2S Breakthrough Capacity CARBON is one thousand (1,000) cubic feet and POLISHING MEDIA is approximately one thousand five hundred (1,500) cubic feet. The SUPPLIER shall procure and deliver MEDIA and MEDIA SCREEN upon request by NTMWD.

B. NTMWD has approximately eighty-seven (87) MEDIA VESSELS that require periodic replacement. The SUPPLIER shall procure and deliver MEDIA VESSELS upon request by NTMWD.

C. All MEDIA, MEDIA SCREEN and MEDIA VESSELS shall be delivered and offloaded to one of the following addresses identified at time of order:

SPECIFICATION – DRY MEDIA PROCUREMENT PAGE 6 OF 6

1. Wilson Creek Regional Wastewater Treatment Plant, 3020 Orr Road, Allen, Texas 75002

2. Sister Grove Water Resource Recovery Facility, 3360 FM 2933, McKinney, Texas 75071

3. Sister Grove Water Resource Recovery Facility, 2436 CR 336, McKinney, Texas 75071

D. MEDIA shall be packaged in waterproof sealed containers on a pallet of a weight not to exceed one thousand (1,000) pounds.

E. NTMWD reserves the right to place orders, on an as-needed basis and NTMWD and SUPPLIER agree to the following:

1. NTMWD will order a minimum of five (5) palletized packages of MEDIA per delivery.

2. All deliveries shall be made within sixty (60) calendar days of order placement.

PART 4 – LIQUIDATED DAMAGES

SUPPLIER and OWNER (the Parties) recognize that time is of the essence in this Agreement and that OWNER will suffer financial loss if SUPPLIER fails to timely complete all obligations required by the Agreement. The parties also recognize the delays, expenses, and difficulties involved in proving in a legal or arbitration proceeding the actual loss suffered by OWNER if the deliveries are not completed by the SUPPLIER in a timely manner. Accordingly, instead of requiring any such proof, the OWNER and SUPPLIER agree to the following:

That as liquidated damages for delay (but not as penalty) in delivery of MEDIA, SUPPLIER shall pay OWNER five hundred dollars ($500.00) per day after the delivery time included in Section 3.01, E., 2. This amount was calculated based on labor and material costs expended by NTMWD in monitoring and responding to an odor complaint. The OWNER will be the sole judge as to whether the delivery has been timely completed. Assessment of Liquidated Damages by the OWNER shall not constitute a waiver of the Owner’s right to sue and collect additional damages which OWNER may sustain by the failure of the SUPPLIER to perform in accordance with the terms of this Contract. This Liquidated Damages provision only covers SUPPLIER’S failure to timely deliver pursuant to the Contract.