PHOSPHATE TECHNOLOGY REGULATORY COMPLIANCE AWWARF RESEARCH AWWARF RESEARCH INFRASTRUCTURE OPTIMIZED CORROSION CONTROL EPA LEAD & COPPER RULE

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1 PHOSPHATE TECHNOLOGY Regulatory Compliance, Infrastructure Protection, Customer Satisfaction OPTIMIZED CORROSION CONTROL REGULATORY COMPLIANCE Herb Spencer, Director Technical Services SHANNON CHEMICAL CORPORATION INFRASTRUCTURE PRESERVATION CUSTOMER SATISFACTION AWWARF RESEARCH Every utility s lead and copper corrosion challenges are unique to that utility s source water quality, treatment train, and distribution system configuration and materials. REGULATORY COMPLIANCE EPA LEAD & COPPER RULE DISINFECTION BY-PRODUCTS (DBP S) ENHANCED COAGULATION ALTERNATIVE DISINFECTANTS AWWARF RESEARCH There is no standard recipe for lead and copper corrosion control that every utility can apply regarding treatment strategies, corrosion control strategies or distribution system management. Source: Distribution System Corrosion and the Lead & Copper Rule; and overview from AWWARF Research April 2004 INFRASTRUCTURE CORROSION INHIBITION PIPES, VALVES, HYDRANTS SERVICES, METERS STORAGE TANKS 1

2 INFRASTRUCTURE CONTROL EXCESS DEPOSITION HARD WATER SCALE IRON & MANGANESE Phosphate Potable Water Additives ANSI/NSF Standard 60 Certified - Compliance with EPA and PADEP Directives The link between Phosphorous Chemistry and the benefits to human life lies in the nutritional value. Phosphorous represents only 1% of our body weight, but, as we shall see, a very important 1%. About 23% of the human skeleton is mineral matter. The phosphorous content of this mineral matter, calculated as tricalcium phosphate, represents 87% of the total. Our teeth are basically calcium phosphates Life s reproductive processes depend on the phosphorous-containing genetic code carriers DNA and RNA. CUSTOMER SATISFACTION IMPROVED WATER QUALITY Phosphate Potable Water Additives Another important biochemical is ATP, or adenosine triphosphate, the energy carrier. * TASTE & ODORS COLORED WATER - RED, BLUE/GREEN HARD WATER SCALE BLACK, Phosphorous enters our bodies mainly through our food and drink. Phosphate based food additives have been consumed for well over 85 years with no harmful effects from long term exposure. Carbonated beverages - Phosphoric Acid (up to 1% in colas) Nutrient Supplements essential for metabolism: constituents in bones teeth and milk (Calcium Phosphate) Baking Powder leavening agent Cheeses an emulsifier up to 3% in pasteurized process cheeses, etc. APPLICATIONS PHOSPHATE FORMULATIONS SPECIFIC TO TREATMENT OBJECTIVES SURFACE WATER GROUNDWATER Phosphate Potable Water Additives Potato Processing sequesters naturally occurring iron to prevent blackening; trade name Taterfos Anti-caking Agent salt, sugar, baking powders Instant cereals shortens cooking time, adds nutrients (calcium & iron) Dentifrices tooth paste (cleaning and polishing agent) Pharmaceuticals drugs and vitamins: tablet compression, high potency vitamin formulation (bio-adsorption) Ham, Bacon, Sausage. Turkey curing component Seafood to prevent protein loss * Phosphorous Chemistry in Everyday Living, Arthur D. F. Toy, Ph.D. and Edward N. Walsh, Ph.D. Published by - American Chemical Society,

3 Phosphate Components SURFACE WATER Sodium, Potassium, Calcium, Ammonium Only Sodium and Potassium based phosphate salts are incorporated into formulations. Selection, manufacture and application of dry and/or liquid blends are specific to: CORROSION INHIBITION BIOFILM CONTROL Water Quality Constituents Functions and Specificity Treatment Objectives Regulatory Constraints ORTHO/ALUMINUM PRECIPITATION Storage, Metering, Application, Design MEDIA FOULING Phosphate Species RESERVOIR SODIUM POTASSIUM Sodium Hexametaphosphate Sodium Tripolyphosphate Potassium Tripolyphosphate Sodium Acid Pyrophosphate Tetrasodium Pyrophosphate Tetrapotassium Pyrophosphate Trisodium Phosphate Tripotassium Phosphate Disodium Phosphate Dipotassium Phosphate Monosodium Phosphate Monopotassium Phosphate Orthophosphoric Acid Selections from acidic, neutral, alkaline Phosphate Functions GROUNDWATER BUFFERING The release of intrinsic acidity or alkalinity to resist ph change CORROSION INHIBITION SEQUESTERING The act of separation or segregation. The formation of stable, water soluble complexes with potentially troublesome cations PRECIPITATION The combination of phosphate with cations to form insoluble complexes. PEPTIZE The action whereby precipitated substances are disintegrated into particles of colloidal dimensions that remain in the dispersed state EFFECTIVE, STABLE SEQUESTERING IRON, MANGANESE, HARDNESS SAPONIFICATION The conversion of fatty oils by an alkali to produce soap 3

4 NAME THE 4 CHEMICALS WELL REMEDIATION ESSENTIAL PHOSPHATE COMPONENT DISPERSANT / OXIDANT PROCESS HPC (IRB, SRB, SLYM) AIR STRIPPERS VOC S, RADON, ph ADJUSTMENT COMMERCIALLY AVAILABLE PHOSPHATES CONTROL OXIDATION & DEPOSITION ZINC METAPHOSPHATES ANTI-FOULANT ZINC ORTHOPHOSPHATES ZINC POLYPHOSPHATES Air Stripper VOC's, Radon, ph COMMERCIALLY AVAILABLE PHOSPHATES NON-ZINC BLENDED ORTHOPHOSPHATES ORTHO/POLYPHOSPHATE BLENDS BLENDED POLYPHOSPHATES SILICATE PHOSPHATES 4

5 SPECIFY ESSENTIAL SERVICES REDUCE YOUR COST TO TECHNICAL SUPPORT ON-SITE CONSULTATION LABORATORY ANALYSIS REPAIR OR REPLACE AND MAINTAIN TANKS, PIPES, VALVES, HYDRANTS METERS, SERVICES RESEARCH SPECIFY ESSENTIAL SERVICES REDUCE YOUR COST FOR DELIVERY & STORAGE OPTIONS DRUMS, PAILS, TANKS SPECIALIZED MINI-BULK SYSTEM CUSTOMER COMPLAINTS RESPONSE & RESOLUTION DISTRIBUTION SYSTEM FLUSHING FOOD GRADE TANK TRUCK DELIVERY THE CORRECT PHOSPHATE APPLICATION COSTS FOR IMPLEMENTATION CAN BE OFFSET BY SAVINGS THAT ARE TRACKED IN OPERATIONS & MAINTENANCE BUDGETS REDUCE YOUR COST TO CONTROL EXCESS DEPOSITION IMPROVE FILTER PERFORMANCE EXTEND RUN TIMES BACKWASH EFFICIENCY 5

6 REDUCE YOUR COST IMPROVE C FACTORS (FLOW, ENERGY & PUMPING ) IMPROVE DISINFECTANT RESIDUALS (REGULATORY COMPLIANCE & CHEMICALS) THANK YOU SHANNON CHEMICAL CORPORATION P.O. BOX 376 MALVERN, PA PHONE: FAX: REDUCE YOUR COST RESTORE BIO-FOULED WELLS EXTEND SERVICE LIFE AND PERFORMANCE OF AIR STRIPPERS QUESTIONS? COMMENTS DISCUSSION 6