The newly methods were tested in urban raw wastewater.
Meanwhile, the BOD5/COD of the raw wastewater was increased from 0.08 to 0.49.
Filtration experiments were performed with raw wastewater and no pretreatment was applied.
Effluent samples included raw wastewater, and samples collected following coagulation/flocculation process and biological treatment.
The raw wastewater contributed to producing the highest ADM under both fertility treatments.
Tests were conducted under two different influent strengths (diluted wastewater, stage 1; raw wastewater, stage 2).
The model was run at steady state with raw wastewater to study the effect of the assumed rectangular shapes and dimensions with constant area, for various values of water depth, flow rate and hydraulic retention time (HRT) of raw wastewater.
A low BOD5/TN ratio of the raw wastewater, led to insufficient denitrification, with an average nitrogen removal of 49%.
First, a physico-chemical pre-treatment of the raw wastewater was conducted, using either coagulation flocculation or precipitation methods.
Results and efficiency of raw wastewater by decentralized natural systems, intelligent storm water management and reuse of treated water in urban irrigation are discussed.
At the Algae Systems plant in Daphne AL, this process was used to treat up to 50,000 gal/day of incoming raw wastewater.
