Nobody wants to endure a sewer system backup into his home. Unfortunately, they happen more often as sewer system infrastructure in the United States ages. Combine age with storms that seem to produce heavier and heavier rains, and you have a recipe for disaster.
Combined sewer systems, which combine both wastewater from homes and stormwater from drains, still exist throughout the Northeast and Great Lakes regions of the United States. Overflows result from insufficient capacity to transport the wastewater and stormwater flows. Unfortunately, during heavy rain, this combined sewer overflow (CSO) can back up into the basements of homes and businesses, costing tens of thousands of dollars in damage.
Backflow prevention valves and catch basins have been typical solutions, but they have big drawbacks: backflow prevention valves, when engaged, prevent wastewater from backing up, but they also prevent wastewater from going out -- ie, the building's plumbing cannot be used. Catch basins can be overwhelmed by heavy rains, as the water goes to the sewer system anyway through manholes and other entry points.
A new best practice for preventing these CSO overflows and backups is installing a grinder pump station to handle the home's wastewater. How does it work, and where has this solution been used? Find out in Grinder Pumps for Basement Flood Prevention, which appeared in the October 2013 issue of Pumps & Systems magazine.
Have questions, or need more information? Visit the E/One web site, or contact us at eone@eone.com.
All about grinder pumps & pressure sewer systems
Showing posts with label sewer over flow. Show all posts
Showing posts with label sewer over flow. Show all posts
Thursday, May 29, 2014
Friday, December 13, 2013
New Article: Examining Sewer Renewal and I/I Solutions with Low Pressure Sewer Systems
The December issue of Underground Infrastructure Management (UIM) magazine features an article by E/One's Keith McHale, PE, our inflow and infiltration project manager.
As the ASCE Infrastructure Report Card reported this year, the country's water and wastewater infrastructure needs can cost upwards of $298 billion over the next 20 years. The grade of "D" that the ASCE gave our wastewater systems indicate a serious need to address sewer system overflows, combined sewer overflows and other pipe-related issues.
Communities around the country are experiencing failures of their gravity sewer systems due to their age -- many pipes in established municipalities are easily 100 years old; sewer pipes even date to the 1860s. When these pipes fail (or at least compromised), engineers and municipalities will consider to repair, rehabilitate or replace the system entirely:
Read the entire article on UIM's web site.
Infiltration and Inflow problems? Watch our video about I&I solutions and learn how an E/One Sewer system can solve your gravity sewer problems.
As the ASCE Infrastructure Report Card reported this year, the country's water and wastewater infrastructure needs can cost upwards of $298 billion over the next 20 years. The grade of "D" that the ASCE gave our wastewater systems indicate a serious need to address sewer system overflows, combined sewer overflows and other pipe-related issues.
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| Gravity sewer pipe in need of repair |
Communities around the country are experiencing failures of their gravity sewer systems due to their age -- many pipes in established municipalities are easily 100 years old; sewer pipes even date to the 1860s. When these pipes fail (or at least compromised), engineers and municipalities will consider to repair, rehabilitate or replace the system entirely:
- Sewer repairs are generally used for localized areas of failure or deterioration. The objective is to restore the sewer to an acceptable operating condition.
- Sewer rehabilitation aims to restore the structural integrity of pipe, extend the operational service life, and in many cases, recapture the hydraulic capacity of the sewer pipe.
- Sewer replacement is the most extensive approach to infrastructure renewal. Replacement involves the complete abandonment of the existing sewer pipe and the installation of a new pipeline.
Read the entire article on UIM's web site.
Infiltration and Inflow problems? Watch our video about I&I solutions and learn how an E/One Sewer system can solve your gravity sewer problems.
Monday, April 1, 2013
ASCE Infrastructure Report Card Released
ASCE released its Infrastructure Report Card a few weeks ago. Wastewater improved slightly, from a D- in 2009 to a D this year.
"Capital investment needs for the nation's wastewater and stormwater systems are estimated to total $298 billion over the next twenty years," according to the Report's web site. Stormwater is a relatively small, though increasing, piece of the spending, but included in the wastewater section.
The largest percentage of the "need" is for expanding and fixing pipes in order to address sanitary sewer overflows and combined sewer overflows.
From the report:
"In 2008, EPA reported that the U.S. 20-year investment needs for aging wastewater treatment totaled just over $298 billion, or almost $15 billion annually. The total represented a 17% increase over the 2004 Clean Watershed Needs Survey (CWNS) results. Meanwhile, annual appropriations for the Clean Water State Revolving Fund (CWSRF) totaled $9 billion over the five years from 2008 to 2012, an average of slightly more than $1.8 billion annually, well short of the annual need. Congressional appropriations totaled approximately $10.5 billion between 2008 and 2012—about $2.1 billion annually or $42 billion over 20 years, 14% of the 20-year needs.
"Of the total needs, over $202 billion in the CWNS was the nationwide capital investment needed to control wastewater pollution for up to a 20-year period. The 2008 report included estimates of $134 billion for wastewater treatment and collection systems, $55 billion for combined sewer overflow corrections, and $9 billion for storm-water management."
Get the full report at www.infrastructurereportcard.org.
"Capital investment needs for the nation's wastewater and stormwater systems are estimated to total $298 billion over the next twenty years," according to the Report's web site. Stormwater is a relatively small, though increasing, piece of the spending, but included in the wastewater section.
The largest percentage of the "need" is for expanding and fixing pipes in order to address sanitary sewer overflows and combined sewer overflows.
From the report:
"In 2008, EPA reported that the U.S. 20-year investment needs for aging wastewater treatment totaled just over $298 billion, or almost $15 billion annually. The total represented a 17% increase over the 2004 Clean Watershed Needs Survey (CWNS) results. Meanwhile, annual appropriations for the Clean Water State Revolving Fund (CWSRF) totaled $9 billion over the five years from 2008 to 2012, an average of slightly more than $1.8 billion annually, well short of the annual need. Congressional appropriations totaled approximately $10.5 billion between 2008 and 2012—about $2.1 billion annually or $42 billion over 20 years, 14% of the 20-year needs.
"Of the total needs, over $202 billion in the CWNS was the nationwide capital investment needed to control wastewater pollution for up to a 20-year period. The 2008 report included estimates of $134 billion for wastewater treatment and collection systems, $55 billion for combined sewer overflow corrections, and $9 billion for storm-water management."
Get the full report at www.infrastructurereportcard.org.
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