WETS was started as Wetland Technologies in 1996 to introduce the technology of constructed wetlands for waste water treatment in place of the costly mechanical-conventional WW treatment systems typical from that period.
A number of large commercial and municipal WWT systems were successfully installed in a short period of time All systems met design goals.
Now as the world experiences competition for all resources, with water becoming the ultimate resource, peoples attitudes toward this “alternate” water treatment technology and with the number of successful studies and trials it is now become accepted.
Design of a 4 MGD state-of-the art wastewater treatment and reuse facility for the City of Fairhope. Process design calculations and WWTP analysis, QA/QC, process equipment selection, NPDES permitting with ADEM for WWTP and effluent discharge location, construction cost estimate and project scheduling. Process equipment selection included analysis of micro–screen technology for head works / advanced primary treatment by Salnes, extended aeration process by Schreiber, tertiary filtration by Centra-Flo and UV disinfection by Trojan Technologies.
Construction cost estimate, process design calculations and performed QA/QC for a 0.5 MGD Sequencing Batch Reactor (Aqua Aerobics SBR) WWTP for the Windcreek Hotel and Resort area. Project incorporates a 0.1 MGD reuse water spray field as well as stream discharge.
Primary treatment and bio-solids handling improvements for an existing 30 MGD activate sludge pure oxygen aeration wastewater treatment plant.
Lake Manatee State Park WWTP upgrade. Services included: design and permitting of an existing 5,000 GPD Wastewater Treatment Plant, including additional surge tank, digester, clarifier, control panel, blower and piping.
Preparation for the restoration of the two TKO landfills in Hong Kong. Managed, preparation of a submittal to the Hong Kong government. The submittal consisted of a restoration design which included capping using geo-synthetic liner system, dual landfill gas/leachate extraction and conveyance systems, landfill gas utilization, groundwater extraction and management system, geotechnical engineering analyses, leachate treatment plant, landfill gas flare stations, surface water management system, restoration infrastructures, environmental impact assessment, landscape restoration plans, environmental monitoring plans.
ConAgra, in Farmerville, LA, chicken processing plant that was disposing 1.8 million gallons of daily effluent to a 200 acre holding lagoon and then discharging to a local river. This tributary discharged into a lake that was used for recreation by the local community. This lake had begun to experience algae blooms and the local community was putting pressure on the State of Louisiana to close the processing plant. ConAgra contracted Wetlands Technology to install a water treatment system. A 90 acre multi-cell system was constructed in approximately 8 months. This system followed the contour of the hilly property creating an esthetically pleasing lowland style marsh area creating a natural wildlife habitat. In the middle of the project the Louisiana Department of Environmental Quality (LDEQ) came to the plant to shut it down for Non-Compliance of water emissions. After seeing the project, at 60% completion enough to continue operating the chicken plant. At the completion of the project the constructed wetlands met all water quality treatment requirements. The water quality of the plant discharge was cleaner that the lake it was being discharged into! The Louisiana Department of Environmental Quality was very pleased on two accounts. The water quality was within discharge regulations and 90 acres of wetland had been added back to the state environment.
MGCRWWA had a small waste water treatment plant using spray fields and constructed wetlands. The facility bordered a Federal Wild Life Shelter for the protected. The basic designed used inlet bar screens for removing large solid debris. These were cleaned by hand. The effluent could then be pumped to the wetlands or a large spray field where hay was grown. The spray field had become overly contaminated and would no longer absorb water and hay growth had slowed. Wetlands technology was contacted to install an additional 54 acres of constructed wetlands, 8 floating aerators for the settling pond, an aeration basin, a pump well for two submerged pumps, an Ultraviolet Treatment system and a Parashal flume for final effluent measurement. The system was installed in a 7 month time period. This facility has been documented the US EPA constructed wetlands guide.
US Army Corps of Engineers (USACE) had a ‘dredge spoil site’ adjacent to a shipyard that needed additional expansion space. The site was partitioned to release the land to the shipyard to allow for expansion of the shipyard. Wetlands Technology was contracted to construct 50 acres wetlands to treat storm water runoff from the shipyard. The site pond was planted specially adapted flora. The property was constructed so that the storm water runoff would enter the wetland from one side, engineered filter bed for the incoming storm water and to generate a “sheet flow” effect into the wetland. This system was completed in approximate 7 months the flora had developed enough to begin attracting ground wild life and migratory birds. This system successfully meets all water treatment standards and is still operational today.
The Escambia County wasteland fill had operated several years with no water treatment. Fortunately the system had been originally constructed using a double HDPE liner with a leachate collection system. The leachate was discharged into a holding pond and discharged into a local water way. In 1989 the Florida legislature enacted the Solid Waste Management Act which mandated the discharging of untreated leachate into public waterways illegal. Wetlands Technology was contacted to construct a leachate treatment system. This system consisted of a double lined surge/aeration basin (25 million gallons) with a series of 10 wetland cells for treating the effluent with two final sand peculation basins for water table recharging. There was no water discharge into public water ways. The system was constructed with the first 5 wetland cells being double lined with a clay bottom (as was the aeration basin) to prevent any leachate from entering the ground water. It was felt at this time the leachate would be clean enough not to require the HDPE liner. These 10 cells were 50’ x 350’ giving approximately 4 acres of treatment area. Within the first season the wetland cells had experience very good plant growth. By the second year the plant had matured and the system had reached zerodischarge.
A county landfill was operating in a rural county of Alabama. New, more stringent water discharge regulations had left the county landfill in non-compliance with the new regulations. Being a rural county there was little money for water treatment systems. Wetlands technologies were contracted to develop a treatment system that would meet their goals of complying with state regulations and inexpensive to install and operate. Due to the topography of the area a 7 acre system was able to be constructed with just gravity flow. Each cell was approximately 1 acre and would gravity flow to the next cell. The first two cells were HDPE lined to prevent peculation into the ground water. The balance of the system was not lined. The system construction was completed in 3 months and the plant matured enough in the first year to meet water discharge permit level. This system has operated with almost no maintenance for many years.
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