AttachmentA.pdf

CITY OF DeLAND, FLORIDA Estimated Need for Fiscal Year 2026-2027 Specifications for FLOCCULANT POLYMER

Estimated Quantity: 28 drums @ 441-pound drums (Rotary Drum Thickeners)

Delivery Location: Wiley M. Nash Water Reclamation Facility 1101 South Amelia Avenue DeLand, Florida 32724

To be furnished in accordance with the following general specifications and shall conform to the standards prescribed by the standard ANSI/AWWA B301-99.

The product we are currently using is Polydyne SE 2157 Polymer for dewatering sludge.

Delivery shall be accepted when and as needed and shall be made within 96 hours of notification of need. Supplier shall be responsible for loading and unloading of polymer barrels to specified storage area.

Specifications for LIQUID FLOCCULANT POLYMER

I. Must be a manufacturer or their direct designated reseller

II. Polymer must be a l iquid

III. Pre-bid Testing must be carried out under the following conditions

1) Provisions Supplied

a) Vendors will be allowed to complete a bench test at the facility between 8:30 a.m.

and 3:30 p.m., Monday through Friday. Vendors will provide their own equipment and labor needed for bench testing

b) City of DeLand will provide rotary drum thickener sludge samples prior to polymer injection

c) Vendors will supply all polymers for bench testing at no cost to the City of DeLand will determine and recommend which polymer will be used for their full-scale field test on rotary drum thickener

2) Protocol For Full Scale Field Testing of Polymers

a) The City of DeLand will, upon written request, schedule each vendor for full scale testing. For scheduling purposes, the contact person and number of the facility is as follows:

i) Wiley M. Nash WWTP – Mark Lankford (386) 626-7212

b) All full-scale tests will be performed between the hours of 8:30am and 3:30pm, Monday through Friday. No testing will be allowed less than three days prior to the bid date.

c) Vendors will be allowed to test one selected polymer for full scale testing on the rotary drum thickener as a result of performance demonstrated during bench testing at no cost to the City of DeLand

d) The City of DeLand will provide a rotary drum thickener and a polymer feed system for the full-scale test.

e) The City of DeLand will determine the feed rate in gpm to the rotary drum thickener. All vendors will use the gpm required at the facility.

f) Vendors will be allowed three hours to complete full-scale testing on rotary drum thickener at each facility. The hourly schedule will be as follows:

i) First hour – used for setup and tuning of polymer. Polymer adjustment will not be allowed past the first hour.

ii) Second and third hour will be the performance period.

g) During this performance period, the following sampling regiment will apply to determine product performance:

i) Rotary Drum Thickener

1) Grab 200 ml thickened sludge at 20-minute intervals (6 grab samples).

Composite into one sample for delivery to laboratory.

2) Grab 200 ml filtrate at 20-minute intervals (6 grab samples). Composite into one sample for delivery to laboratory.

3) Grab 200 ml feed solids at 20-minute intervals (6 grab samples). Composite into one sample for delivery to laboratory.

ii) City of DeLand personnel familiar with the applicable process will collect and composite all samples.

iii) Vendors will be provided fifty (50) percent of collected composite sample volume for separate analysis if requested. However, should there be differences in analytical results, the City of DeLand’s laboratory analytical results will be the sole analytical data considered for the purpose if this invitation to bid.

3) Required at plant Rotary Drum Thickener

Wiley M. Nash WWTP 300-350 GPM

4) Typical Solids concentration ranges for each plant sludge feed:

Rotary Drum Thickener Wiley M. Nash WWTP 7,000-9,000 mg/L

5) The award will be made based on the ability to meet each of the quality parameters identified by the city, and the lowest cost of polymer per dry ton of sludge processed:

Wiley M. Nash WWTP 2.5 – 3% TS Maximum Product @ >90% Capture

Notes:

A. TS is Total Solids

B. % Capture is calculated as:

C. Lbs. solids applied to unit, or Lbs. solids in side stream, is calculated as:

D. Dry tons are calculated as:

E. Cost of polymer per dry ton of sludge processed is calculated as:

NOTE: Regardless of test results obtained, the City shall be the sole judge of the product to be purchased in the best interest of the City. No vendor or bidder shall be compensated by the City for conducting tests or submitting a bid.

Estimated Quantity: 50 totes @ 575-pound totes (Biosolids Centrifuge) conform to the standards prescribed by the standard ANSI/AWWA 703-84.

The product we are currently using is Polydyne SE 2157 Polymer for dewatering sludge.

Delivery shall be accepted when and as needed and shall be made within 96 hours of notification of need. Supplier shall be responsible for loading and unloading of polymer barrels to specified storage area.

Specifications for FLOCCULANT POLYMER

IV. Must be a manufacturer or their direct designated reseller

V. Polymer must be a l iquid

VI. Pre-bid Testing must be carried out under the following conditions

1) Provisions Supplied

d) Vendors will be allowed to complete a bench test at the facility between 8:30 a.m.

and 3:30 p.m., Monday through Friday. Vendors will provide their own equipment and labor needed for bench testing

e) City of DeLand will provide rotary drum thickener sludge samples prior to polymer injection

f) Vendors will supply all polymers for bench testing at no cost to the City of DeLand will determine and recommend which polymer will be used for their full scale field test on rotary drum thickener

2) Protocol For Full Scale Field Testing of Polymers

b) All full-scale tests will be performed between the hours of 8:30am and 3:30pm, Monday through Friday. No testing will be allowed less than three days prior to the bid date.

c) Vendors will be allowed to test one selected polymer for full scale testing on the belt presses as a result of performance demonstrated during bench testing at no cost to the City of DeLand

d) The City of DeLand will provide a centrifuge and a polymer feed system for the full-scale test.

e) The City of DeLand will determine the feed rate in gpm to the belt press. All vendors will use the gpm required at the facility.

f) Vendors will be allowed three hours to complete full-scale testing on the belt press at each facility. The hourly schedule will be as follows:

iii) First hour – used for setup and tuning of polymer. Polymer adjustment will not be allowed past the first hour.

iv) Second and third hour will be the performance period.

g) During this performance period, the following sampling regiment will apply to determine product performance:

i) Centrifuges

4) Grab 200 ml thickened sludge at 20-minute intervals (6 grab samples).

Composite into one sample for delivery to laboratory.

5) Grab 200 ml filtrate at 20-minute intervals (6 grab samples). Composite into one sample for delivery to laboratory.

6) Grab 200 ml feed solids at 20-minute intervals (6 grab samples). Composite into one sample for delivery to laboratory.

ii) City of DeLand personnel familiar with the applicable process will collect and composite all samples.

iii) Vendors will be provided fifty (50) percent of collected composite sample volume for separate analysis if requested. However, should there be differences in analytical results, the City of DeLand’s laboratory analytical results will be the sole analytical data considered for the purpose if this invitation to bid.

3) Required at plant Centrifuges

Wiley M. Nash WWTP 200 - 300 GPM

Centrifuge Wiley M. Nash WWTP 1 – 2% Solids

5) The award will be made based on the ability to meet each of the quality parameters identified by the city, and the lowest cost of polymer per dry ton of sludge processed:

Wiley M. Nash WWTP 20 – 22% Solids @ >95% Capture

Notes:

C. TS is Total Solids

D. % Capture is calculated as:

E. Lbs. solids applied to unit, or Lbs. solids in side stream, is calculated

F. Dry tons are calculated as:

NOTE: Regardless of test results obtained, the City shall be the sole judge of the product to be purchased in the best interest of the City. No vendor or bidder shall be compensated by the City for conducting tests or submitting a bid.

Estimated Quantity: 12 drums @ 441-pound drums (Effluent Diamond Filters) conform to the standards prescribed by the standard ANSI/AWWA B301-99.

The product we are currently using is Polydyne SE 2199 Polymer for dewatering sludge.

Delivery shall be accepted when and as needed and shall be made within 96 hours of notification of need. Supplier shall be responsible for loading and unloading of polymer barrels to specified storage area.

Specifications for LIQUID FLOCCULANT POLYMER

VII. Must be a manufacturer or their direct designated reseller

VIII. Polymer must be a l iquid

IX. Pre-bid Testing must be carried out under the following conditions

1) Provisions Supplied

g) Vendors will be allowed to complete a bench test at the facility between 8:30 a.m.

and 3:30 p.m., Monday through Friday. Vendors will provide their own equipment and labor needed for bench testing

h) City of DeLand will provide Effluent Diamond Filters samples prior to polymer injection

i) Vendors will supply all polymers for bench testing at no cost to the City of DeLand will determine and recommend which polymer will be used for their full-scale field test on rotary drum thickener

2) Protocol For Full Scale Field Testing of Polymers

b) All full-scale tests will be performed between the hours of 8:30am and 3:30pm, Monday through Friday. No testing will be allowed less than three days prior to the bid date.

c) Vendors will be allowed to test one selected polymer for full scale testing on the Effluent Diamond Filters as a result of performance demonstrated during bench testing at no cost to the City of DeLand

d) The City of DeLand will provide a Effluent Diamond Filters and a polymer feed system for the full-scale test.

e) The City of DeLand will determine the feed rate in gpm to the Effluent Diamond Filters. All vendors will use the gpm required at the facility.

f) Vendors will be allowed three hours to complete full-scale testing on rotary drum thickener at each facility. The hourly schedule will be as follows:

v) First hour – used for setup and tuning of polymer. Polymer adjustment will not be allowed past the first hour.

vi) Second and third hour will be the performance period.

g) During this performance period, the following sampling regiment will apply to determine product performance:

i) Effluent Diamond Filters

7) Grab 200 ml thickened sludge at 20-minute intervals (6 grab samples).

Composite into one sample for delivery to laboratory.

8) Grab 200 ml filtrate at 20-minute intervals (6 grab samples). Composite into one sample for delivery to laboratory.

9) Grab 200 ml feed solids at 20-minute intervals (6 grab samples). Composite into one sample for delivery to laboratory.

ii) City of DeLand personnel familiar with the applicable process will collect and composite all samples.

iii) Vendors will be provided fifty (50) percent of collected composite sample volume for separate analysis if requested. However, should there be differences in analytical results, the City of DeLand’s laboratory analytical results will be the sole analytical data considered for the purpose if this invitation to bid.

3) Required at plant Effluent Diamond Filters

Wiley M. Nash WWTP 2,000-5,000 GPM

Effluent Diamond Filters Wiley M. Nash WWTP5) The award will be made based on the ability to meet each of the quality parameters identified by the city, and the lowest cost of polymer per dry ton of sludge processed:

Wiley M. Nash WWTP 2.5 – 3% TS Maximum Product @ >90% Capture

Notes:

E. TS is Total Solids

F. % Capture is calculated as:

G. Lbs. solids applied to unit, or Lbs. solids in side stream, is calculated

H. Dry tons are calculated as:

NOTE: Regardless of test results obtained, the City shall be the sole judge of the product to be purchased in the best interest of the City. No vendor or bidder shall be compensated by the City for conducting tests or submitting a bid.

Specifications for LIQUID CHLORINE

Estimated Quantity:

700 each 150-lb cylinders (for use at water plants)

To be furnished in accordance with the following general specifications and shall conform to the standards prescribed by the standard ANSI/AWWA B301-99. Cylinders shall be delivered in a well-maintained condition or they will be rejected. Failure to correct the issue will give the City the right to reject the contract and award to the next lowest bidder or rebid.

Delivery shall be accepted when and as needed and shall be made within 96 hours of notification of need. Supplier shall be responsible for loading and unloading of chlorine cylinders to specified storage area.

Specifications for POLY/ORTHOPHOSPHATE

Estimated Quantity: 60 each 55-gallon drums

Delivery Location: City of DeLand Public Services 1102 South Garfield Avenue DeLand, FL 32724

General Specifications:

Product shall be a liquid blend made from dry raw materials of sodium and potassium orthophosphate and polyphosphate ingredients. There must be at least four distinct and active phosphate ingredients intentionally combined to form a blended product, with all raw materials present at 5% or greater based on dry weight. Dry weight shall be defined as the weight of ingredients other than added water not pertaining to waters of hydration.

Vender shall supply the City of DeLand, Florida a list of the four (minimum) ingredients included in the product proposed. Since formulations of blended phosphate are normally proprietary in nature, percentage of product components will not be required, however CAS numbers will be.

The product supplied shall be of food grade and shall not contain any soluble mineral or organic substance in quantities capable of producing deleterious or injurious effects to the health of persons consuming water that has been properly treated with the product.

Product shall be certified to meet ANSI/NSF Standard 60 Direct Additives for Drinking Water and shall be found to be acceptable for potable use in Florida by State regulatory agencies.

There shall be no use of phosphoric acid in product composition, and the product will be made from dry raw materials.

Product shall meet the following technical specifications:

Color: Clear

Specific Gravity: 1.34 ± 0.02 Weight/Gallon: 11.1 - 11.2 Total Phosphate: 34 - 37 % Total Phosphate as PO4 29 - 31 % pH (1% solution ): 6.2 - 6.6 pH (neat product ): 5.2 - 5.8

Liquid product shall contain 30% +/- 2% orthophosphate measured as PO4. This percentage is determined by the ratio of orthophosphate to total phosphate measured as PO4 in the liquid product. Ingredients containing significant amounts of zinc or sulfite are not acceptable.

Pre-Qualifications to Bid

Only products previously used for corrosion control in the City of DeLand Water Facilities shall be bid. Product must be previously tested for lead, copper & mild steel leaching control effectiveness at two (2) specific City of DeLand Water Treatment finished water locations for a minimum of sixty (60) days prior to be listed as a qualified product to be considered for inclusion in prospective bid list, unless the company has previously supplied product to our plant facilities for a duration of at least one year. Testing shall be at the vendor’s expense.

Acceptance or rejection of product as an effective inhibitor is based on these tests and sole decision basis for pre-qualification. No other product will be considered.

Inspection and Testing Requirements

Bidder(s) may be required to furnish satisfactory samples for testing for compliance with this specification, or otherwise prove to the satisfaction of the City of DeLand, Florida that the proposed material complies with the requirements. Each bidder shall supply, if requested, three current references of users to whom they are supplying the specific material proposed to meet these specifications.

The determination of the percentage of orthophosphate to total phosphate measured as orthophosphate will be by the colorimetric method as described in APHA Standard Methods 17th Ed. in Section 4500 or by any other approved method before and after hydrolysis. Any product that does not test within the required range will be rejected.

Product stability shall be such that storage in a polyethylene tank for eight (8) months will not affect compliance with the 30% +/- 2% orthophosphate requirement. Each product drum/ container must be accompanied with NSF certification stamp.

The City of DeLand, Florida reserves the right to make inspections to manufacturing site or product tests (hydrometer testing) as necessary to ensure the delivery of a satisfactory product. Any inferior product received may be rejected and the balance of the order canceled immediately.

The City may, at its own discretion, perform performance tests on the product supplied during the term of the contract. Distribution system performance will be measured by copper and lead leaching analysis of distribution system and plant samples and by system tests for PO4 and total phosphate. These tests will be performed and results evaluated by the City of DeLand, Florida to determine acceptable performance. Acceptable performance can generally be defined as corrosion inhibition equal to the Florida DEP requirements for corrosion control optimization.

Successful bidder may need to furnish corrosion coupons of mild steel to be installed at locations designated by the City of Deland, Florida for monitoring of corrosion rate.

Coupons are to be evaluated by an independent testing laboratory acceptable to the City of DeLand, Florida. The number of coupons required will be (16) mounted in (4) racks provided by the successful bidder and are to be evaluated at times agreed upon by the City of DeLand, Florida and the successful bidder.

Delivery Requirements

Delivery shall be accepted when and as needed and shall be made within 96 hours of notification of need. Supplier shall be responsible for loading and unloading of chlorine cylinders to specified storage area.

General Requirements

The vender must have technical service capability to provide the City of DeLand, Florida testing and consultation, and to resolve field problems on site at no cost to the City of Deland, Florida on an as needed basis.

All bid proposals shall be accompanied by the required Material Safety Data Sheet in accordance with the Federal "Right-to-Know" Regulations implemented by the Occupational Safety and Health Administration. No bids will be accepted without this required information.

Specifications for LIQUID ALUMINUM SULFATE (8.3%AL203)

Estimated Quantity: 240 TONS

Bids will be accepted only for those products which will produce the desired results of reducing phosphorous levels below one (1) mg/L in the Water Reclamation Facilities effluent.

Alum Solution: 48.5% Viscosity: 30 Centistokes Specific Gravity: 1.35 to 1.48 pH: 2.0 to 2.4 Temperature: Ambient

Deliveries shall be in bulk quantities of 4,500 gallons/49,254 lbs. per delivery to an existing on site 9,000-gallon storage tank when and as needed and shall be made within 96 hours of notification of need.

Product that is delivered with chemical balls and that is not properly blended will be rejected by the City. Failure to correct this issue will give the City the right to cancel the contract and give the contract to the next lowest bidder or at our discretion, rebid the product.