Home Infrastructure Environmental Sanitation Treatment PlantsSeptic tank for small towns DescriptionSeptic tank for small populations. blueprints of the floor; structures and details. Format DWG File size 342.15 KB DOWNLOAD Related Entries Sewage plant sand trap sludge digester settler Sewage treatment plant Residual water treatment plant Processing facilities Macrophyte leito - water purifying pond sand trap Residual water treatment plant Processing facilities sewage lifting plant Pretreatment Water treatment plant Residual water treatment plant Residual water treatment plant Pre-treatment in sewage treatment plant Percolator project - sewage treatment plant Pit treatment unit - anaerobic filter with an average capacity of 10 m3 Double pass filter x Water treatment plant sewage effluent treatment plant Maturation lagoon for 10 lt/sec Kinder garden Residual plant pretreatment design Treatment plant in Zacatlan Lagoon entrance chamber sand trap Effluent treatment plant sweeper bridge share your appreciation