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Composting: Griffith Park Compost Facility |
you should know...
The City is committed to managing its biosolids in an environmentally sound, socially acceptable, and cost-effective manner. We are constantly reviewing the program and incorporating continual improvements. To ensure that we continue to engage our interested parties and public we invite you to participate in our goals and objective setting process. To find out more click here.
In 2009, we conducted an interim audit of our program. To view the results or assist in addressing the findings from the audit click here. Also if you are interested in participating in future audits please contact us. We value your input and would love to hear from you. If you have any questions or comments contact us at 310-648-5877 or san.biosolidsems@lacity.org.
This site was updated on
July 22, 2010
| Composting: Griffith Park Compost Facility
Composting is the process by which organic materials such as biosolids are decomposed into a nutrient-rich soil conditioner. There are three primary composting methods, all of which produce a safe, high quality product:
- Windrow composting takes place in linear piles as organic material is blended, then turned at regular intervals to provide aeration. This is the simplest compost process, having the lowest level of process control and requiring very little inputs (e.g. electricity, etc.).
- In Aerated Static Pile (ASP) composting, piles of blended organic waste materials remain stationary throughout the process and are aerated by a circulation system. ASP composting offers more process controls than windrow composting, reducing stabilization time and land area required for a site. Process air pulled through the active composting piles can be directed to odor control equipment such as a biofilter.
- In-vessel composting processes use an automated, fully enclosed system that mechanically agitates and aerates blended organic materials in concrete bays. In-vessel composting features maximum process control and is generally preferred where site selection dictates maximum odor control and where weather conditions warrant an indoor composting process.
The City produces a compost product at the Griffith Park Compost Facility. Click the links below to find out more about the facility.
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