place Case Studies

Timisoara, Romania

The Timisoara water system is operated by AQUATIM SA (public company). The regional utility is offering services for drinking water (28 water treatment plants) and operate regional wastewater treatment plants(22 in their area) as well as leakage reductions in the distribution systems.The water coming from the city wastewater collection system enters the waste water treatment plant through four main sewers and goes through the mechanical and advanced biological treatment facilities, prior to be discharged into the Bega river. The mechanical treatment phase includes four coarse and fine screens, equipped with cleaning, waste compaction and storage systems. 
When the sewage stream exceeds the designed capacity limit, the excess is taken by four first flush storage tanks. When this limit is also exceeded, the stream is screened by an automated cleaned rack and then pumped into the Bega river, by seven Flygt pumps, at a rate of 3,500 l/s.The biological treatment phase includes the nitrification-denitrification process and the chemical treatment for the removal of phosphor. The tank has a capacity of 106,600 cubic meters and is divided into four sections. The removal of phosphor is achieved by chemical treatment, using the ferrous sulphate as coagulation agent and a dosing and injection system. The biomass is separated in eight secondary circular settlers, with diameters of 40-48 m. In the project CS#10, the project will tackle the thermochemical conversion of sewage sludge and will study the water reuse for several industries in Timisoara.
At the Timisoara WWTP, pilot-scale testing of thermochemical conversion of sludge will be implemented. The technology demonstrated will be pyrolysis (via thermo-catalytic reforming) of aerobically stabilised sewage sludge to produce biochar, oil and gas. These products can be exploited energetically as fuel or soil enhancing agent or sorbent. The water reuse of the secondary effluent of the Timisoara WWTP will be studied, looking into the feasibility for urban (e.g. street cleaning, park irrigation), industrial and agricultural (farm land irrigation) applications. 
For the water re-use study, the local project partners will map potential users by performing a water demand analysis of municipality, industrial and agricultural users,will describe the water quality issues related to sectoral water reuse and suggest treatment options, , and will assess the different environmental and economic/financial implications that could result from water re-use.

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Last update on 2022-03-10 14:45 UTC