State of the Art Composting Comes to Florida David Hill McGill Compost

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Gervase Dixon
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1 State of the Art Composting Comes to Florida David Hill McGill Compost

2 Richmond Raleigh Wilmington Charleston Brighton In development About McGill Founded 1991 Multiple indoor manufacturing plants in U.S. and Ireland Computerized static pile, forced aeration processing ~100 employees worldwide 1991 Mid-1990s 2008

3 Brighton Organic Compost Facility

4 Project s key players

5 Why tribal land? Tribal sovereignty facilitates decisionmaking and approvals Permitting process is controlled by Tribal economic development and environmental departments Tribe-controlled lands (trust or non-trust) and Tribe or member 51% ownership is a prerequisite to BIA guaranty and NAB financing

6 Why Brighton? Brighton at the epicenter of Florida s most populous areas Organic sources and feedstock markets should be within 100-mile radius of composting facility Transportation of feedstocks (compostable waste) to the facility and compost products to high-value markets are significant cost factors that greatly influence location. Brighton is in the heart of the Lake Okeechobee watershed and will be a part of the major undertaking to save the Everglades

7 Central Location

8 McGill-Brighton

9 McGill-Brighton

12 McGill Process Modified Cornell Process Fully enclosed process Full control over all variables Accelerated compost process = greater throughput More consistent, Higher quality compost

13 Physical plant Brighton facility is primarily an indoor operation (like other McGill plants) McGill invests in indoor processing because it puts the operator in control of the process not the weather. Also facilitates biofiltration of process air to mitigate odors and eliminates leachate generation as a management and regulatory issue. Includes latest McGill advancements in design and technology (like encapsulated bay processing)

14 Brighton layout PRIMARY PROCESSING BLENDING RAMP CURING SCREENING OFF LOADING

15 BLEND Blending Area

16 PROCESSING CURING

8-10 FEET Processing bay Blended material is placed in processing bay. Temperature feedback sensor is placed in material. side view Door closed, computer monitoring activated.

As air rises, air is extracted by another set of fans for biofiltration. Material is not handled or turned during processing.

17 8-10 FEET Processing bay Blended material is placed in processing bay. Temperature feedback sensor is placed in material. side view Door closed, computer monitoring activated. Computer regulates intake fans to maintain desired temperatures. Maintaining ideal temperatures (not too hot, not too cold) accelerates the composting process. As air rises, air is extracted by another set of fans for biofiltration. Material is not handled or turned during processing. When computer indicates end-of-process, the fresh compost is removed for curing. When a composting pile gets too hot, desirable micro-organisms die. This crashes the system, and it takes time for these microbes to repopulate. Controlling temperatures eliminates this hot-cold cycling, accelerating the process. McGill can process 10 times more material in the same space as a windrow operation. Stale air to biofilter

18 Accepted Materials WOOD, C&D AND PAPER chips, sawdust, bark, charcoal, wood ash, clean dimensional lumber, land clearing debris (including topsoil), unpainted/untreated wood (including pallets) and gypsum products, engineered wood (additional tests may be required to determine appropriateness for composting), dirty paper, pulp, waxed and unwaxed cardboard FOOD WASTE (including meat and dairy) scraps and culls, past sell-by, biodegradable food service ware (bioware), restaurant grease, agricultural manures, bedding, other agricultural and food processing by-products SLUDGE AND OTHER RESIDUALS Alum, ferric, biosolids, DAF and other water/wastewater treatment residuals/by-products from municipal, industrial, and agricultural sources All feedstocks must meet or exceed: EPA Class A toxicity and metals standards for finished compost Regulatory requirements established by operating permits McGill policies and processing standards

19 Feedstocks Mixed Organics Food Residuals Biosolids Manures Agricultural Residuals

20 Amendments Carbon and Structure Ground Brush Wood Chips Mixed Paper Other

Fully Automated Process Blending Achieve optimal moisture, porosity, carbon-to-nitrogen balance. Specific formulations based on volumes and types of feedstocks.

21 Fully Automated Process Blending Achieve optimal moisture, porosity, carbon-to-nitrogen balance. Specific formulations based on volumes and types of feedstocks. Processing and curing Modified aerated static pile process. Computerized-control optimizes composting conditions to reduce time to maturity and meet regulatory compliance parameters. Cost-cutting, rapid throughput with high quality compost product. Control and data collection Temperatures quickly elevated and maintained through continuous temperature readings feeding the process controller. Once PFRP and VAR are met, the system is optimized to meet your defined requirements parameters such as degradation rate, moisture reduction, quality, cost etc. Real-time and historic data for each processing bay can be viewed on the computer screen and exported as spreadsheets and graphic visualizations for easy archiving and compliance.

Compost sales McGill manufactures a branded line of performance products

These include industries like stormwater management, erosion control,

Most compost sales about 4 million cubic yards in the last 20 years has

22 Compost sales McGill manufactures a branded line of performance products for professional markets. These include industries like stormwater management, erosion control, sports turf and conventional agriculture, as well as landscape supply. Most compost sales about 4 million cubic yards in the last 20 years has been to bulk markets. McGill SoilBuilder, which is 100% compost, is also offered in a 40-pound bag. Stormwater Sports turf Retail

23 Compost No compost Sports turf

24 Redskins training camp

27 Golf courses PHOTO: Forsyth Country Club, NC

28 Landscaping

29 Before After Stafford County Library (VA)

30 Committed to Quality

31 (863)

HANCOCK COUNTY PLANNING COMMISSION

HANCOCK COUNTY PLANNING COMMISSION 395 State Street Ellsworth, ME 04605 207-667-7131 hcpc@hcpcme.org COMPOSTING: A SUMMARY OF OPTIONS FOR HANCOCK COUNTY Composting: Why should we encourage composting?