Cart

{{ successMessage }}
{{item.orderingCode}}
Qty: {{ item.quantity }}
{{currencySymbol}}{{item.pricing.totalPrice | intlNumber('ar-OM','USD')}}
Subtotal ({{totalQty}} {{totalQty === 1 ? "item" : "items"}}):
{{currencySymbol}}{{cartSummary.total | intlNumber('ar-OM','USD')}}
TEST SITE
You will not be charged yet.

Ash Pond Dewatering

Solutions to meet coal combustion residuals (CCR) compliance with ash pond closures

Xylem Helps Power Companies Reclaim CCR Ash Ponds 

With federal regulations for flue gas waste and coal combustion residuals (CCR) in effect, energy companies making the transition from coal-fired to gas-fired power generation are taking action to reclaim CCR storage ponds. The regulations prohibit further storage of CCR waste in surface impoundments and encourage producers to treat, dewater and decommission ponds as soon as is practically possible. 

Xylem Supports Ash Pond Cleanup 

Xylem’s solutions for ash pond dewatering in support of pond closures include temporary and permanent treatment equipment for the removal of suspended solids and metals. 

Technologies include:  

  • Ballasted clarification 
  • Media filtration 
  • Settling tanks 
  • Transfer systems

If required, polishing equipment can be utilized including reverse osmosis systems and wastewater ion exchange reactive media, or the SeHAWK® bioreactor system. 

Advanced treatments for arsenic, mercury and selenium are also available when tighter outfall limits are present. Solids waste is typically concentrated, pressed, and dewatered with the resultant solid cake returned to the pond prior to capping or disposed at landfill. 

As regulations evolve, coal-fired power plants will need to make decisions related to environmental strategies, treatment technologies, and implementation. Full scale systems require advance planning, engineering, and project management to allow for a cost-effective solution to meet compliance deadlines.  

Solutions to Meet Effluent Limits Include: 

  • Equalization/clarification 
  • Chemical feed systems 
  • Sludge tanks/filter presses 
  • Pironox advanced reactive media 
  • Monitoring instrumentation 

Solutions to Meet CCR Compliance Include: 

  • Equalization/clarification  
  • Media filtration  
  • Sludge tanks/filter presses 
  • Monitoring instrumentation 

Xylem offers temporary and permanent water and wastewater treatment solutions to meet ELG and CCR requirements for coal-fired plants