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Archive for May, 2016

25 May 2016

Concentrate management from reverse osmosis leachate treatment – challenges and possibilities

As discharge limits tighten, many landfill owners have begun considering advanced leachate treatment processes, in many cases membrane-based technologies. These processes use physical separation to remove pollutants. I wanted to share my thoughts on the waste stream produced by reverse osmosis (RO) treatment and give my take on the challenges it presents. Reverse osmosis is…

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Categories: Environmental Planning & Compliance, Landfill Engineering and Design, Operations and Maintenance, Solid Waste
Posted By Arie Kremen, PhD at 11:30 AM  |  No Comments on Concentrate management from reverse osmosis leachate treatment – challenges and possibilities

11 May 2016

Time for a change? Lessons learned while transitioning from windrow operations to aerated static pile composting

Last year I wrote a blog post about helping a Waste Management landfill in northern California convert a classic windrow composting facility (in which compost is piled up outdoors and periodically turned) to a covered aerated static pile (CASP) composting facility, where larger piles undergo aeration using on-grade (or in-floor) piping. Fast forward a year,…

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Categories: Air Quality, Landfill Engineering and Design, Organics, Solid Waste, Transfer/Recycling/Processing Facilities
Posted By Jessica Bernardini, PE at 11:30 AM  |  No Comments on Time for a change? Lessons learned while transitioning from windrow operations to aerated static pile composting