Market Survey of FGD Wastewater Treatment

Transcription

1 Market Survey of FGD Wastewater Treatment Key Takeaways on how Coal Plants are organizing to stay compliant with EPA Regulations with regards to FGD Waste Water Treatment January 2013

2 EPA Timeline FGD Wastewater Permitting 1982 EPA finalizes current effluent guidelines 2005 Annual ELG review highlights steam electric Industry as a major contributor to toxic and nonconventional effluents Significant process and technology changes since 1982 Fll2009 Fall Detailed study completed EPA announces its intent to update the effluent guidelines Summer2010 InformationCollection Request (ICR) Detailed questionnaire sent to 733 out of 1,200 fossil and nuclear steam electric power plants All coal and petroleum coke fired units and sample of oil, natural gas and nuclear units Gather technical information about plant processes effluent and waste characteristics as well as financial/economic i i data July 2012 Proposed regulation, postponed to December 2012 then April 2013 January 2014 Final regulation Implement new requirement tthrough h 5 year NPDES permit cycle EPA.org Data

3 Profile of Steam Electric plants Studied 733 total plants 8% 25% 5% 62% Coal Fired Oil Fired Natural Gas Nuclear 80% Wet Scrubbers EPA.org Data

4 EPA.org Data

5 When New Regulations hit Major concerns Mercury and Selenium removal Ash Pond maintenance and planning Best Available technology to achieve new standards Cost for violations or fines are unknown Plantshut down is a possibility

6 Independent Survey Outline More Than 80 Coal Plants Both Top Down and Bottom Up Respondents Corporate Plant Managers Environmental Operations Project Managers Division Heads Engineering

7 42% of the Coal Plants indicated using Settling Ponds amongst other approaches for their FGD Waste Water Treatment. Settling Ponds Current Treatment e t Constructed Wetlands Physical Chemical Precipitation Biological Treatment 6.78% 8.47% 11.86% 42.37% ZLD (Zero Liquid Discharge) Evaporation Systems DND/Not sure 23.73% 5.08% Source: Lead to Market; N=59

8 51% of respondents believe regulatory changes will be required in less than 5 years 10.17% 10.17% 1 2 years 3 4 years 4 5 years More than 5 years DND/Not sure 38.98% 35.59% 5.08% 32% of respondents were not confident (moderately, slightly, not confident at all or did not know) there current system could meet coming regulations Source: Lead to Market; N=59

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10 49% of the respondents would like to receive information on how ZLD technology can help them in meeting the next generation of regulations % Yes No DND/Not sure 40.68% 49.15% Source: Lead to Market; N=59

11 Scope of Work Aquatech is a Total Solution o Provider Site Survey in coordination with Owners Engineer Technology Supply Zero Liquid Discharge Physical Chemical Biological Installation and Plant Integration Design Build Operation Design Build Operate (DBO) Design Build Own Operate (DBOO)

12 Thank You Patrick Randall Aquatech ;

13 Contaminant Treatment Options Element/ Compound of Concern Removal Technology Options Technology Treatment Limit Technology Maturity / Commercial Availability Arsenic Cadmium Chromium III Chromium VI Copper Lead Physical-Chemical ppm Commercial / mature biological treatment (anerobic) < 0.01 ppm (Oxyanion form only) Commercialization in progress Physical-Chemical ppm Commercial / mature biological treatment (anerobic)?? Physical-Chemical ppm Commercial / mature biological treatment (anerobic)? < 0.01 ppm Commercialization in progress Physical-Chemical ppm (after reducing to Cr III) Commercial / mature biological treatment (anerobic)? < 0.01 ppm Commercialization in progress Physical-Chemical ppm Commercial / mature biological treatment (anerobic)?? Physical-Chemical ppm Commercial / mature biological treatment (anerobic)??

14 Contaminant Treatment Options Element/ Compound of Concern Removal Technology Options Technology Treatment Limit Technology Maturity / Commercial Availability Mercury Nickel Selenium (selenite) Selenium (selenate) Silver selective ion exchange Pilot Physical-Chemical < 2 ppb (w/ media filter) Commercial / mature Physical-Chemical ppm Commercial / mature biological treatment (anerobic)?? ZLD using evaporators Non detectable t Commercial / mature biological treatment (anerobic) < 0.05 ppm Commercialization in progress Physical-Chemical i l ppm (40% -75%Reduction) Commercial / mature biological treatment (anerobic) < 0.05 ppm Commercialization in progress Iron cementation Pilot ZVI Bench / Pilot Chiyoya selenium treatment Commercial / mature deep well injection Physical-Chemical ppm Commercial / mature biological treatment (anerobic)??

15 Contaminant Treatment Options Element/ Compound of Concern Removal Technology Options Technology Treatment Limit Technology Maturity / Commercial Availability Zinc Physical-Chemical ppm Commercial / mature biological treatment (anerobic)?? clarification and filtration < 1 ppm (Turbidity < 1 NTU) Commercial / mature TSS Ammonia Boron biological treatment (aerobic) < 1 ppm Commercial / mature ion exchange Bench / Pilot ZLD using evaporators > 99.9% Reduction Commercial / mature Nitrates biological treatment (anerobic) < 10 ppm Commercial / mature biological treatment (anerobic) Commercial / mature Phosphates precipitation by alum, lime, or iron < 0.5 ppm Commercial / mature Dissolved Salts ZLD using evaporators ppm Commercial / mature

16 Ten Questions Were Asked 1. What type of FGD (Flue Gas Desulfurization) scrubber do you have installed in your coal plant? Check only one 1a. Are you planning to install a wet scrubber in your coal plant in the next 1-5 years.? 1b. Have you identified a consulting firm to help you with the process? 1c. Are you planning to get a FGD waste water system installed in the next 1-5 years? 1d. Would you like to receive information on how ZLD technology can help you meet the next generation of regulations? 2. Which of the following best describes your current approach to FGD waste water treatment? Check all that apply Settling Ponds Constructed Wetlands Physical Chemical Precipitation Biological Treatment ZLD (Zero Liquid Discharge) Evaporation Systems 3. How long have you had this system in place? Selection from 1-5 years. 4. Which of the following issues do you currently face with your FGD waste water system? Check all that apply System cannot meet discharge limit compliance y g p System is unreliable and causes plant shutdowns System is not cost effective and should be replaced System is limited and will not meet our needs in the future We are not facing any issues

17 Ten Questions Were Asked Given your existing approach to waste water treatment, please answer the following questions: 1. On a scale of 1 to 5, 1 being not confident at all, 5 being extremely confident, how confident are you that you are currently meeting all regulatory discharge requirements? 2. On a scale of 1 to 5, 1 being not confident at all, 5 being extremely confident, how confident are you that you will meet all future regulatory discharge requirements? 3. How soon do you believe that regulatory changes will take affect forcing you to consider upgrading or replacing your system? 4. Are you looking to upgrade you current FGD waste water system in the next 5 years? 5. What stage are you in, in terms of investigating ZLD technology as a complete solution to meet the next generation of waste water recovery standards? Currently Investigating Planning to Investigate in the near future No Plans to investigate t in the near future 9a. Have you engaged the services of a consulting firm to help you with the investigation process? 9b. Are you planning to engage g the services of a consulting firm to help you with the process? 9c. How do you plan the fund the new initiative? Check all that apply Self-Finance Build Own Operate (Vendor finance) Government Subsidy Bank Loan 6. Would you like to receive information on how ZLD technology can help you meet the next generation of regulations?

18 35% of the respondents said they have a Wet Scrubber installed in their Power Plant; 49% of respondents said they do not have a FGD system in place 60.00% 50.00% 48.54% 40.00% 34.50% 30.00% 20.00% 00% 16.96% 10.00% 0.00% Wet Scrubber Dry Scrubber We do not have a FGD system in place Source: Lead to Market; N=171