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Last modified
8/22/2016 10:53:04 AM
Creation date
8/22/2016 10:53:01 AM
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Official Documents
Official Document Type
Agreement
Approved Date
08/16/2016
Control Number
2016-116
Agenda Item Number
8.W.
Entity Name
Van Ert, Nemoto and Associates LLC
Subject
Pilot Plant study full- scale managed acquatic Plant
pollution removal system harvested biomass
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Stage 1. Site Selection, Preliminary Water Testing, Construction of Pilot. <br /> In Stage 1 we will work with the County to identify appropriate sites for the pilot along <br /> the NRC and to secure the permits for construction of the pilot. To date, we have al- <br /> ready made progress on this front and worked with Indian River Farms Water Control <br /> District to identify an acceptable site and to secure a letter of support for the project <br /> from an adjacent HOA community. <br /> We will collect baseline water quality data and data on suspended and settleable solids <br /> in the NRC. A detailed breakdown of the sampling schedule and test parameters is <br /> available upon request.Sample analysis costs were calculated based on comparative <br /> quotes from two laboratories that are National Environmental Laboratory Accreditation <br /> Program (NELAP) certified. Note that we have budgeted for a percentage of quality <br /> control samples (field /equipment blanks) that meets or exceeds FDEP field quality con- <br /> trol requirements (5% of samples as per DEP-SOP-001/01). The Stage 1 data will be <br /> used to guide Stage 2 and Stage 3 pilot operations and, potentially, modifications to the <br /> pilot design (eg., flow rates, incorporation of clarifier, etc). <br /> In the Stage 1 budget, we allotted funds for a small scale lamella clarifier' to allow col- <br /> lection of a sufficient amount of suspended solids to perform a robust chemical analysis <br /> on the material. (Our preliminary spectrophotometric and Imhoff cone data suggest that <br /> we will need to pump and settle several thousand gallons of water to generate sufficient <br /> dry suspended solids for chemical analyses). An additional benefit of purchasing this <br /> unit is that it can be used as a clarifier module, as required, during Stage 2/3. <br /> During Stage 1 we will purchase equipment and materials, construct the pilot system <br /> and bring electricity to the site. Based on budgetary considerations and discussions with <br /> the County, we will be using modular tanks for pilot construction; the specific construc- <br /> tion materials and costs are available on request. <br /> The general layout of a LEAPSTM test system is illustrated in Figure Al on the next <br /> page and is similar to the designs previously described in our Proposal (page 23, Figure <br /> 213). However, we will now only operate a single LEAPSTM system that contains Water <br /> Lettuce as the floating aquatic plant; as opposed to testing multiple LEAPSTM systems <br /> with different floating aquatic plant species. This modification in scope will allow us to <br /> conserve and reallocate funds to extend the project period from six months to one year. <br /> Further, it reflects the field-reality that Water Lettuce is the overwhelmingly dominant <br /> floating plant currently in the NRC. <br /> The floating aquatic plant module for the pilot LEAPSTM test system will consist of two <br /> serial 725 gallon tanks to maximize treatment area, hydraulic detention, and solids set- <br /> tling capabilities. The next module, the periphytic, ephiphytic algae reoxygenation <br /> (PEARO) system will be constructed as described in the original Proposal. The emer- <br /> gent plant module will consist of a 725 gallon tank that incorporates 3 rows of <br /> BEEMATS floating growth structures; this will allow us to evaluate three emergent spe- <br /> cies side-by-side and gives us flexibility in plant harvesting strategies. <br /> 1 The clarifier is a LYNTEK 10 gallon per minute lamella clarifier tank(60 gallon settling tank) <br />
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