Now Reading: How Orlando’s 1,200-acre wetlands clean water with periodic ‘demucking’
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How Orlando’s 1,200-acre wetlands clean water with periodic ‘demucking’
How Orlando’s 1,200-acre wetlands clean water with periodic ‘demucking’
Since 1987, the City of Orlando has used 1,200 acres of constructed wetlands to treat reclaimed water, handling about 5.11 billion gallons annually. However, aquatic plants that absorb nutrients eventually die and…
The Story in Brief
Since 1987, the City of Orlando has used 1,200 acres of constructed wetlands to treat reclaimed water, handling about 5.11 billion gallons annually. However, aquatic plants that absorb nutrients eventually die and decay, forming organic muck that can clog the system and release nutrients back into the water, according to operational records from the City of Orlando Water Reclamation Division.
To counter this, the city carries out periodic 'demucking' projects. Crews drain sections of the marsh, scrape away about 18 inches of compacted sediment, and remove roughly 200,000 cubic yards of organic material per cycle. After replanting with nutrient-absorbing species like giant bulrush, the marsh resumes filtering reclaimed water. The first demucking began in August 2002, after 15 years of operation.
The Indian Opinion
Some may trumpet this as a green marvel without mentioning the heavy earthmoving required every few years. Orlando's constructed wetland is not a set-and-forget solution; it demands regular, industrial-scale maintenance to stay effective. The real test will be whether other cities with similar ambitions can budget for such costly renovation cycles, or if the system's long-term energy and cost savings justify the upfront investment.
Source: timesofindia.indiatimes.com
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