USE and APPLICATION OF CORRUGATED HDPE PIPES part 1
Part 1, Usage of HDPE Corrugated pipes
1. Storm Drainage
HDPE Corrugated pipe or HDPE Corrugated pipe has become the pipe of choice for many of these drainage applications. The Stormwater system requires varying pipe sizes and cover requirements in landscaping and parking areas. Corrugated HPDE is a durable and cost-effective pipe material for this on-site drainage facility. The pipe material approved for the transport of drainage in public rights is determined by the jurisdiction responsible for the maintenance of the facility. HPDE has been used for road and road culvert drainage and storm drainage.
system for more than 20 years. Most state, city and county Department of Transportation have included HDPE in their Departmental Standard Construction Specifications. The installation has inserted culverts under very high fill and under minimal cover. Many installations have been monitored and show satisfactory performance. Fears of insufficient strength, cracks, and setbacks over time have proven unfounded.
2. Subsurface Drainage
HDPE corrugated pipe or HDPE corrugated pipe can also be produced with perforated or perforated. Perforations or perforations allow subsurface water to be collected and transferred to a location favorable to disposal. A subdrainage system is used to collect leachate under the landfill site. Subdrainage systems are also used to control and direct underground water transport and to encourage proper percolation of surface water on golf courses, athletic fields, hillside development projects and in agriculture. Often times, a subdrainage system is used to lower the water table. For athletic field development, the subdrainage system has been connected to the air vacuum system to encourage the downward movement of surface and subsurface water.
HDPE corrugated pipe / corrugated perforated / perforated is often used to control water levels in agricultural land. Perforated pipes are installed to collect and transport subsurface drainage and / or groundwater or to control groundwater depth.
3. Sanitary Sewer
HDPE pipe is an ideal septic system leachate pipe material. One type of HDPE pipe has been specially designed with a special perforation to allow percolation (water absorption).
4. Leachate Colection
The mining industry has a special application of subdrainage ideal for corrugated HDPE perforated pipe. A technique called heap leaching is used to recover deposits of low-grade copper, gold, and silver. A cyanide solution sprayed over the soil containing gold or silver converts the minerals into chemical compounds. The solution is collected in a perforated pipe subdrainage system and transported to the pond. Gold or silver is extracted from ponds using carbon sequestration or precipitation. HDPE is perfect for this process because it is very resistant to chemical attack. Tests have shown little or no HDPE degradation with long term exposure to a pH range of 1.5 to 14.0.
5. Rainwater detention / retention management system
Current regulations in most areas limit the rate of rainwater runoff as well as the levels of pollutants that are permitted in discharged storm waters. Urbanization of land can dramatically change the natural movement of water. When runoff is transported away from critical areas, it can cause problems where recharging from water sources is required to maintain a stable groundwater supply. To solve this problem, torrential rainwater retention systems hold runoff until the surrounding soil can receive it through percolation (absorption), allowing the aquifer (a watery subsurface rock layer) to be replenished. In other cases, existing torrential rainwater drainage trunk systems are not designed to accept increased peak flow and runoff must be maintained until the peak flow subsides.
continue to part 2