SYSCO Foods - TWT Water Treatment Cost Savings Anaysis

FOODS DISTRIBUTOR SAVES BIG WITH TWT

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See more about SYSCO Foods and TWT water treatment savings at Harrisburg, PA	The Triangular Wave Deposit Control System is an advanced method for controlling scale and bio-fouling in fluid systems. The Triangular Wave System performs many functions that lead to significant cost savings. For example: Deposit control means blowdown can be reduced, because concentrations of total dissolved solids in the water may be allowed to rise without concern for scale buildup. Deposit control means no chemical treatment is needed to keep equipment surfaces free of scale and bio-film. The costs and savings experiences at two SYSCO Food Distributions in Harrisburg, PA and Poway (near San Diego), CA have been remarkable. The California site is presented below, and the Pennsylvania site can be seen by clicking here. Each facility has a Total Water Control System to treat the cooling water. As seen below, the return on investment from TWT treatment is very significant from operational, economic, and safety points-of-view.
	SYSTEM DESCRIPTION - SYSCO San Diego Distribution Facility, Poway, CA Evapco Evaporative Condenser -- 800 tons capacity
	OPERATING CONDITIONS BEFORE TWCS 12 hours per day -- 365 days per year -- 800 tons; tower cleaning -- 2 times per year; tower monitoring and labor hours -- 6 hours per month; standard chemical treatment program; conductivity controller for blowdown set at "3"; incoming TDS -- 600 (average)
	YEARLY OPERATING COSTS Chemical treatment Cleaning, monitoring, and labor costs Water usage Estimated water and sewer costs (City of Poway --$1.71/ccf water and $2.15/ccf sewer)	$8,000 $5,000 9,466,800 gal (12,648 ccf) $48,821
	Date Total Water Control System (TWCS) Installed	August 1998
	OPERATING CONDITIONS WITH TWCS 12 hours per day -- 365 days per year -- 800 tons minimum; tower cleaning -- not required to date; tower monitoring and labor hours -- 2 hours per month; standard chemical treatment program -- eliminated; blowdown at 1,200 gallons per day -- backwash sand filter; incoming TDS -- 600 (average)
	CURRENT YEARLY OPERATING COSTS Chemical treatment Cleaning, monitoring, and labor costs Water usage Estimated water and sewer costs (City of Poway costs)	$0 $1,650 6,745,200 gal 9,017 ccf $34,808
	COST SAVINGS ANALYSIS Yearly chemical expense reduction Yearly labor expense reduction Yearly water/sewer expense reduction Total yearly expense reduction Return on Investment Payback 10 year life cycle savings	$8,000 $3,350 $14,013 $25,363 100% 12 months $304,356