GCCS

SCS Webinar: Black Goo, Pluggage, and Scaling in Landfill Gas and Leachate Infrastructure

May 19, 2022

FREE ON-DEMAND WEBINAR & Q/A

Prresented Live on Thursday, May 19, 2022
2:00 pm Eastern Time for 1 hour

PLAY: Black Goo, Pluggage, and Scaling in Landfill Gas and Leachate Infrastructure

 

Landfills across the country are experiencing a trend ─ black goo, pluggage, and scaling in their leachate and gas collection systems. These organic and inorganic deposits are difficult to treat once they’ve seeped into liquid and GCCS systems, clogging equipment and pipes, and impacting the extraction of liquids and landfill gas.

Our panelists this month discuss best practices for identifying, treating, and possibly even preventing these chemical deposits before and after they occur within your infrastructure. We’ll also include what landfill field operations can do to identify and treat conditions that appear symptomatic of possible future issues.

No one has all the answers ─ each site’s conditions are unique. Our team of engineers, scientists, and landfill-landfill gas operations experts will provide a comprehensive discussion in May of what we are seeing and piloting in the field.

  • Samuel Cooke, PE, Chemical Engineering, Leachate & Industrial Wastewater Treatment
  • Brian Kelley, Field Services, LFG Control, Recovery, Emissions
  • Nathan Hamm, PE, Liquids Management, Industrial Wastewater & Leachate Treatment
  • Marc Lefebvre, PE, Chemical Engineering, Industrial Wastewater Treatment Studies & Designs
  • Mark Pearson, PE, Environmental Engineering, Water & Wastewater Treatment Plant Process Designs

As with all SCS Client Webinars, we’re here to answer your questions throughout the forum and afterward. Using case studies and field experience, our panelists take us through the science, environmental conditions, and technical considerations to prevent or treat this emerging challenge before it gets costly.

This educational, non-commercial webinar with a Q&A forum throughout is free and open to all who want to learn more about landfill pluggage concerns and preventative treatments to consider. We recommend this month’s discussion for landfill owners/operators, landfill gas technicians, environmental engineers, and environmental agency staff. A Certificate of Attendance is available on request following the live session.

 

EREF FUNDED RESEARCH

The University of Wisconsin – Madison is currently studying landfill black goo under an EREF grant. With permission of the landfill owner/operator the research team is requesting 1 liter samples of goo be sent to them. You may want to send more than one sample; often the goo characteristics vary across a landfill or cells. Please send samples with a point of contact and identifiers to:

Mr. Xiaodong Wang
2241 Engineering Hall
1415 Engineering Drive
Madison, WI 53706

If your local university is sponsoring a study, the Wisconsin researchers look forward to collaborating with your team.

Posted by Diane Samuels at 2:00 pm

Preventing Black Goo, Pluggage & Scaling in Landfill Infrastructure

May 11, 2022

 

Landfills across the country are experiencing a trend ─ black goo, pluggage, and scaling in their leachate and gas collection systems. These organic and inorganic deposits are difficult to treat once they’ve seeped into liquid and GCCS systems, the pluggage slows equipment and pipes, impacting the extraction of liquids and landfill gas.

Our team of engineers, scientists, and landfill-landfill gas operations experts will provide a comprehensive discussion in May of what we are seeing and piloting in the field.

Live on Thursday, May 19, 2022

2:00 pm Eastern Time for 1 hour

Register to receive on-demand access following the live forum.

 

Register Here for Preventing Black Goo, Pluggage, and Scaling in Landfill Gas and Leachate Infrastructure

 

Prevent chemical deposits and pluggage before your pipes slow landfill gas and leachate collection.

This educational, non-commercial webinar with a Q&A forum throughout is free and open to all who want to learn more about landfill pluggage concerns and preventative treatments to consider. We recommend this month’s discussion for landfill owners/operators, landfill gas technicians, environmental engineers, and environmental agency staff. A Certificate of Attendance is available on request following the live session.

 

 

 

Posted by Diane Samuels at 6:00 am

FREE: Preventing Chemical Deposits in Landfill Infrastructure

May 2, 2022

chemical deposits clog landfill systems preventing efficient collection

 

Our panelists this month discuss best practices for identifying, treating, and possibly even preventing chemical deposits (black goo, scaling, foaming) before and after they occur within your infrastructure. We’ll also include what landfill field operations can do to identify and treat conditions that appear symptomatic of possible future issues.

No one has all the answers ─ each site’s conditions are unique. Our team of engineers, scientists, and landfill-landfill gas operations experts will provide a comprehensive discussion in May of what we are seeing and piloting in the field.

Live on Thursday, May 19, 2022

2:00 pm Eastern Time for 1 hour

 

Register Here for Preventing Black Goo, Pluggage, and Scaling in Landfill Gas and Leachate Infrastructure

 

Prevent chemical deposits (black goo, scaling, foaming) bofore your pipes plug or slow landfill gas and leachate collection. RSVP to receive a copy of the recording for on-demand access.

 

 

 

Posted by Diane Samuels at 6:00 am

FREE: Preventing Black Goo, Pluggage, & Scaling in LFG & Leachate Infrastructure

April 27, 2022

 

It isn’t often that you have the oppotunity to have a full bench of experts at your disposal for free. At SCS, it happens monthly. Join us for our next free forum covering sticky situations that clog your landfill gas and leachate pipes. Keep the gas and liquids flowing with our scientists, engineers, and field experts. Ask questions anonymously for privacy, and learn the latest strategies for preventing and mitigating pluggage.

Live on Thursday, May 19, 2022

2:00 pm Eastern Time for 1 hour 

Register Here

 

 

 

Posted by Diane Samuels at 3:41 pm

Considerations for landfill closures start from the day a site is permitted…

August 6, 2020

… according to the experts, and continue through its active life. All along, operators should consider what they will need to show regulators once they are ready to install the final cap.

Choosing the right designer for liquids and gas management is critical.  The complexity of landfills varies from site to site, and issues related to conflicts among gas and liquids pipes, and pipes and final cover geosynthetics vary depending on the geometry and other landfill features involved at each location. In short, your designers must understand and work closely with your operations and monitoring team.

The best way to resolve conflicts before the closure is to have a coordinated effort among parties involved in the design to discuss and find solutions to every conflict at the design stage.

Read the article here.

 

 

 

 

Posted by Diane Samuels at 6:00 am

MSW Landfills EG Comment Period Ends October 7, 2019

August 22, 2019

 

EPA 40 CFR Part 62

 

This proposed MSW Landfills Federal Plan includes the same elements as required for a state plan: identification of legal authority and mechanisms for implementation; inventory of designated facilities; emissions inventory; emission limits; compliance schedules; a process for the EPA or state review of design plans for site-specific gas collection and control systems (GCCS); testing, monitoring, reporting and record-keeping requirements; public hearing requirements; and progress reporting requirements. Additionally, this action summarizes implementation and delegation of authority of the MSW Landfills Federal Plan.

This proposed action addresses existing MSW landfills and associated solid waste management programs. For the purpose of this regulation, existing MSW landfills are those that accepted waste after November 8, 1987, and commenced construction on or before July 17, 2014.

Tables 1 and 2 in the publication list the associated regulated industrial source categories that are the subject of this action and the status of state plans. The EPA tables are not intended to be exhaustive but do provide a guide for readers regarding the entities that this proposed action is likely to affect. The proposed standards, once promulgated, will be directly applicable to the designated facilities.

The document contains the full text and how/when to comment or appear at the public hearing. Feel free to share this document or page with others using the icons at left.

EPA-HQ-OAR-2019-0338-0001_August_22_2019

 

Contact SCS Engineers

 

 

 

 

 

Posted by Diane Samuels at 11:53 am

Landfill Gas Collection and Control Systems – GCCS Article Series in MSW Magazine

September 24, 2018

To generate a return on investment of site-specific GCCS, you need OMM staff who understand the strengths and weaknesses of your site. From that understanding, successful OMM teams and facility owners can design, perform, and fine-tune their program.

SCS’s BMP’s uses a “beyond the compliance OMM model” because the practice leads to strengthening relationships with regulatory agencies and LFG energy providers. Our clients expect to move toward a field optimization program when both OMM procedures and regulatory requirements are fine-tuned to work in concert. That investment pays dividends by increasing compliance and improving gas recovery. When developed OMM principles are defined clearly, and evolved along with GCCS design and construction, teams rise to the challenge, and the reward is a consistent track record of excellent GCCS operation.

Part 1 of the series discusses design considerations for landfill gas collection and control systems (GCCS); Part 2 takes into account construction quality assurance (CQA) measures during construction of GCCS; and Part 3 covers BMP’s for GCCS Operation, Monitoring, and Maintenance (OMM) in the September/October issue of MSW Magazine. The SCS Team covers:

  • Safety
  • Monitoring Plans
  • LFG Well Start-up
  • Wellfield Tuning and Maintenance
  • Compliance

 

 

 

 

Posted by Diane Samuels at 6:05 am

SCS Advice From the Field: GCCS Construction Quality Assurance

May 21, 2018

CQA is essential for ensuring the proper construction of GCCS and meeting the intent of the design, and can help prevent safety mishaps. Even highly experienced design-build teams invest in expert CQA professionals to protect their capital investment, maintain maximum LFG capture through constructed GCCS, and keep operating and maintenance costs in line. It is critical for CQA person-nel to understand the overall intent of the design drawings, current field conditions, long-term conditions, and strict safety protocols. They must also have the expertise to respond to the questions contractors have during construction, especially regarding modifications to the design which will positively impact safety, long-term performance, and maintenance.

Part 1 of the 3-part article series in MSW Magazine discussed essential elements of the piping system in a landfill gas collection and control system (GCCS). The authors examine landfill GCCS design perspective and the benefits of designing landfill gas (LFG) headers outside of the waste boundary. In Part 2, we focus on construction quality assurance (CQA) services and outline the process of taking the design drawings through completion of the CQA report.

Read Part 2 here. Contains link to Part 1.

 

 

 

Posted by Diane Samuels at 6:03 am

SCS Advice from the Field: Considerations for the Piping Network

March 5, 2018

An essential part of landfills accepting organic matter is the gas collection and control system (GCCS) for controlling odors and landfill gas (LFG) emissions into the environment; the piping network. GCCS design and construction have evolved significantly over the past four decades, from passive venting trench systems to a sophisticated and elaborate piping systems with specialized components for handling LFG, landfill liquids, and condensate flowing through the piping network.

This detailed article discusses best practices and recommendations that GCCS designers keep in mind; careful attention to these details can potentially save  landfill operators significant modification costs and inconveniences prior to and during construction of the final covers.

Read the full article published in MSW Magazine.

About the Authors: Ali Khatami, Ph.D., PE, LEP, CGC, is a Project Director and a Vice President of SCS Engineers. Srividhya Viswanathan, PE, is a Senior Project Manager with over 10 years of engineering experience. David Fisher is an SCS National OM&M Compliance Manager with 18 years of environmental experience.

 

 

Posted by Diane Samuels at 6:01 am

Advice from the Field: Plan for and design a landfill gas collection system with particular attention to landfill bottom liners.

November 21, 2017

We continue SCS’s Advice from the Field blog series with guidance from an article in MSW Magazine by Daniel R. Cooper, Jason Timmons, and Stephanie Liptak.

Planning a landfill gas collection system before collection is required can increase the long-term benefits for multiple stakeholders.

The authors of a recent article in MSW Management Magazine present engineering ideas that provide for more efficient construction of a GCCS.  Gas system operators will benefit by having fewer pumps to operate and maintain and shallower headers that are more easily accessible. Odor management will be easier along with other benefits.

Read the full article here to learn about the design elements for maximizing long-term benefits, impacting: bottom liners, location of the blower/flare station, leachate risers, extraction well targets, and external header piping.

 

 

Posted by Diane Samuels at 6:00 am