User:Environmentalist and Historian/sandbox

Decentralized wastewater treatment refers to a broad range of technologies that allow the treatment of wastewater.

Structurally reinforced thermoplastic (SRTP) is a generic term referring to thermoplastic engineered materials of a wide variety of shapes and compositions including composites. Examples include reinforced thermoplastic pipe, profile wall pipes, sandwich panel, honeycomb structured thermoplastics, twinwall plastics and other cellular structured thermoplastic materials. Typically, the materials used are polyethylene (PE), polypropylene (PP), or nylon and may be reinforced with aramid fibers, fiberglass, or steel although other combinations are used.

Pipe
SRTP pipe has made the fabrication of high pressure thermoplastic pipe and large diameter pipe through helical extrusion and incorporation of composite stiffening structures. High density polyethylene (HDPE) is commonly used since it is resistant to chemical attack and drinking water safe.

Panels
Some examples of these include sandwich panel, honeycomb structured thermoplastics, twinwall plastics. Recent developments in twinwall

Integrated structures
Some structures have been known to partially or fully rely on multiple SRTP materials for their structural integrity, corrosion resistance, or ease of manufacturing.

Applications
Civil infrastructure including drinking water, storm water and waste water storage , conveyance , treatment ,

Ship building

Aeronautics

Manufacturers
SRTP pipe is manufactured by a variety of firms, predominantly focusing on large diameter HDPE pipe examples of these firms include: Uponor Infra

Polypipe

Kanaflex

ISCO Industries

Contech