sand trap

fan of an industrial esp

drainage works

Drainage detail in passage

Sewage collection bed

Ecological bathroom with biodigester

drying bed

Decanter

Manhole design and specifications

Wastewater pumping chamber

Residual water treatment plant

band filter

Irrigation system sand remover

Sewer

conventional treatment plant

Reinforced concrete channel plans and sanitation

sand trap

storm drain well

anaerobic filter tank

Solid waste treatment plant - various facility plans and technical specifications

drain detail