Water Treatment Equipment Manufacturer

Case Study: "Effects of frequent blow-downs"

 Customers Problem:

A large industrial manufacturer called a Lakeside service provider for service of their boiler pretreatment system. Excessive water usage and high levels of scale build up on the burner tubes was causing frequent blow downs. The boiler system was using soft water for make-up causing the boiler to operate at 8-13 cycles. This excessive blow down increased water usage, pretreatment expenses and was wasting fuel and energy. High conductivity and elevated levels of bicarbonate alkalinity and silica contributed to these issues. The high levels of bicarbonate alkalinity can’t be removed by a softener system and will generate carbonic acid in the steam condensate, which is very corrosive when in contact with metals like copper and steel. The boilers integrity was being compromised and shorter life expectancy was determined requiring an immediate solution.

                                                                             

Lakeside Solution and Results:

Lakeside engineers designed a 6,000 gallon per day reverse osmosis system that reduced the chemicals being used to keep the boiler clean. This resulted in a 47% savings. The system also reduced the conductivity down to 7uS/cm, resulting in a 1% blow down rate. Boiler cycles increased from 8-13 to over 125 cycles of concentration saving 25% on natural gas fuel costs. The rejection of the alkalinity reduced the CO2 levels there by reducing the carbonic acid in the steam condensate. This reduces corrosion of metal surfaces in the steam piping system, extends equipment life and reduces capital expenditures. 

 

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Case Study: “Scale build-up in high pressure boiler."

Customers Problem:

A small paper company was using industrial softeners polished by a dealkalizer to reduce the scale build-up in their high pressure boiler system. The municipal feed supply utilized several different wells and switched often or blended a combination, resulting in fluctuating feed water ranging from 500 to 1400 ppm dissolved solids. The system discharged high chloride waste water into the local waste water treatment plant, exceeding the discharge limits. This created expensive disposal expenses. 

 

Lakeside Solution and Results:

A 252,000 gallon per day industrial reverse osmosis system provided the solution with zero added chlorides in the waste water. The system was designed utilizing alternating SBS chemical injection system for chlorine removal and alternating antiscalant feed system for hardness removal. These pre-treatment systems prevent fouling and premature failure of the RO membranes. The boiler chemicals were reduced by about 48% and maintenance expenses were dramatically reduced with a blow down rate of less than 1%. It also increased the boilers cycles of concentration by over 118 and eliminated the chloride discharge saving thousands in fines and disposal expenses. The customer experienced a $58,500 energy savings.

 

 

 

 

Address: 7869 N. 73rd St. Milwaukee, WI 53223, Phone: 414.365.0787 Fax: 414.365.0248 Email: info@lakesidewater.com 

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