123 use and activity. As environmental conditions improve, buffers can become more flexible to allow residents into the area to enjoy the scenery. CONSTRUCTED WETLAND
110 Two Buffer Strips in the Long Run.
The constructed wetland has several benefits that can be compared to a conventional treatment system (see figure 28). Constructed wetlands are a robust and reliable technology, easy to maintain and operate, financially sustainable, and environmentally sound (Constructed Wetland in Vidrare, Bulgaria, 2011). Wastewaters flow through the wetlands, filtering suspended solids and trace metals. Plants and organic material also provide many benefits, such as absorbing trace metals, providing food and nutrients to organisms, and producing oxygen. This complex biochemical process filters and purifies the wastewater (Constructed Wetland Factsheet, n.d.). Referring to similar cases (Constructed Wetland in Vidrare, Bulgaria, 2011) and landscape engineering requirements
CREEK REVIVAL
109 Phase One Buffer.
The constructed wetland is another important strategy to prevent further pollution in the creek area. Constructed wetlands are “engineered systems, designed to utilize the natural functions of wetland vegetation, soils, and their microbial populations to treat contaminants in surface water, groundwater or waste streams” (Technical and Regulatory Guidance Document for Constructed Wetlands, 2003) The Taubman Team proposes constructed wetlands surrounding the periphery of the creek as the first line of protection, which can filter and absorb the pollutants from the runoff water that reaches the creek.
