Iasi WWTP, Iasi County, Romania

Project description


Within this contract, our team elaborated full technical proposal for Iasi municipality (Iasi county, Romania) wastewater treatment plant covering preliminary treatment, primary treatment, advanced biological treatment and sludge treatment up to 25% solids content.

The plant was designed for a dry weather maximum daily flowrate of 255.120,0 m3/day serving an equivalent population of 933.333 PE.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (wet weather wastewater overflow, overflowed wastewater pumping and receiving water discharge, screening, influent wastewater pumping, grit and grease removal), primary treatment (primary clarification, overflow), advanced biological treatment (pre-denitrification for biological nitrogen removal, enhanced phosphorus biological removal), chemical phosphorous removal
  • sludge treatment: primary sludge gravity thickening, excess sludge mechanical thickening, thickened sludge anaerobic digestion, biogas cogeneration, digested sludge mechanical dewatering, and dewatered sludge storage

The following disciplines were covered within the proposal:

  • Process
  • Hydraulics
  • Mechanical
  • Structural
  • Architectural
  • Electrical
  • Instrumentation, control and automation (SCADA)
  • Roads, platforms and alleys
  • Landscaping
  • HVAC

Moieciu WWTP, Brasov County, Romania

Project description


Within this contract, our team elaborated the process project for Moieciu city (Brasov county, Romania) wastewater treatment plant covering preliminary treatment, advanced biological treatment and sludge treatment up to 22% solids content.

The plant was designed for a dry weather maximum daily flowrate of 1.126,0 m3/day serving an equivalent population of 5.800 PE.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (influent pumping, screening, grit and grease removal, flow and load equalization), advanced biological treatment with sludge stabilization (pre-denitrification for biological nitrogen removal, enhanced phosphorus biological removal, membrane biological reactors), chemical phosphorous removal
  • sludge treatment: excess sludge aerobic stabilization, stabilized sludge mechanical dewatering, and dewatered sludge storage

The following disciplines were covered within the project:

  • Process, including process control philosophy
  • Hydraulics
  • Mechanical
  • Instrumentation, control and automation

Lunca Calnicului WWTP, Brasov County, Romania

Project description


Within this contract, our team elaborated the process project for Lunca Calnicului village (Brasov county, Romania) wastewater treatment plant covering preliminary treatment, advanced biological treatment and sludge treatment up to 22% solids content.

The plant was designed for a dry weather maximum daily flowrate of 7.762,0 m3/day serving an equivalent population of 28.600 PE.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, grit and grease removal), advanced biological treatment in a BioCoS (Biological Combined System) type system, including nitrification, denitrification and chemical phosphorous removal
  • sludge treatment: excess sludge aerobic stabilization, stabilized sludge mechanical dewatering and dewatered sludge storage

The following disciplines were covered within the project:

  • Process, including process control philosophy
  • Hydraulics
  • Mechanical
  • Instrumentation, control and automation

Alesd WWTP, Bihor County, Romania

Project description


Within this contract, our team provided process design for Alesd city (Bihor county, Romania) wastewater treatment plant covering preliminary treatment, advanced biological treatment and sludge treatment up to 20% solids content.

The plant was designed for a dry weather maximum daily flowrate of 1.987,0 m3/day serving an equivalent population of 14.500 PE.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, screened wastewater pumping, grit and grease removal), advanced biological treatment with sludge stabilization (pre-denitrification for biological nitrogen removal, enhanced phosphorus biological removal), chemical phosphorous removal
  • sludge treatment: excess sludge mechanical thickening, thickened sludge mechanical dewatering, and dewatered sludge storage

The following disciplines were covered within the project:

  • Process

Constanta Nord WWTP, Romania

Project description


Within this contract, our team provided structural, hydraulic, mechanical design for Constanta Nord (Constanta county, Romania) wastewater treatment plant covering preliminary treatment, primary treatment, advanced biological treatment and sludge treatment up to 25% solids content.

The plant serves an equivalent population of  255.000 PE.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, grit and grease removal), primary treatment (primary clarification), advanced biological treatment with sludge stabilization (pre-denitrification for biological nitrogen removal, enhanced phosphorus biological removal), chemical phosphorous removal
  • sludge treatment: primary sludge gravity thickening, excess sludge mechanical thickening, thickened sludge mechanical dewatering, and dewatered sludge storage.

The following disciplines were covered within the project:

  • Structural
  • Hydraulic
  • Mechanical

Targoviste WWTP, Dambovita County, Romania

Project description


Within this contract, our team elaborated full technical proposal for Targoviste Sud (Dambovita county, Romania) wastewater treatment plant covering preliminary treatment, primary treatment, advanced biological treatment and sludge treatment up to 25% solids content.

The plant was designed for a dry weather maximum daily flowrate of 38.386 m3/day serving an equivalent population of 125.800 PE.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (wet weather wastewater overflow, screening, grit and grease removal, septic sludge acceptance station), primary treatment (primary clarifications), advanced biological treatment (simultaneous denitrification for biological nitrogen removal, enhanced phosphorus biological removal), chemical phosphorous removal
  • sludge treatment: primary sludge gravity thickening, excess sludge mechanical thickening, thickened sludge screening, thickened sludge anaerobic digestion, biogas cogeneration, digested sludge mechanical dewatering, and dewatered sludge storage

The following disciplines were covered within the proposal:

  • Process
  • Hydraulics
  • Mechanical
  • Structural
  • Architectural
  • Electrical
  • Instrumentation, control and automation (SCADA)
  • Roads, platforms and alleys
  • Landscaping
  • HVAC

Voluntari WWTP, Romania

Project description


Voluntari municipality decided to elaborate the feasibility study for city’s upgrade of the sewerage system infrastructure through extending the wastewater and stormwater separate/combined collection networks and build a new wastewater treatment plant.

Within this contract, our team provided process design for Voluntari city (Ilfov county, Romania) wastewater treatment plant covering preliminary treatment, primary treatment, advanced biological treatment and sludge treatment up to 22% solids content.

The plant was designed for a dry weather maximum daily flowrate of 55.226,4 m3/day serving an equivalent population of  300.000 PE.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, grit and grease removal), primary treatment (primary clarification), advanced biological treatment with sludge stabilization (pre-denitrification for biological nitrogen removal, enhanced phosphorus biological removal), chemical phosphorous removal
  • sludge treatment: primary sludge gravity thickening, excess sludge mechanical thickening, thickened sludge anaerobic digestion, biogas cogeneration, digested sludge mechanical dewatering, and dewatered sludge storage.

The following disciplines were covered within the project:

  • Process
  • Hydraulics
  • Mechanical

Intorsura Buzaului WWTP, Covasna County, Romania

Project description


Within this contract, our team elaborated process design for Intorsura Buzaului city (Covasna county, Romania) wastewater treatment plant covering preliminary treatment, primary treatment, advanced biological treatment and sludge treatment up to 20% solids content.

The plant was designed for a dry weather maximum daily flowrate of 2.249,0 m3/day serving an equivalent population of 15.730 PE.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, screened wastewater pumping, grit and grease removal, septic sludge acceptance station), primary treatment (primary clarification), advanced biological treatment with sludge stabilization (pre-denitrification for biological nitrogen removal, enhanced phosphorus biological removal), chemical phosphorous removal
  • sludge treatment: excess sludge mechanical thickening and dewatering, and dewatered sludge storage

The following disciplines were covered within the project:

  • Process
  • Hydraulics
  • Mechanical

Tg. Secuiesc WWTP, Covasna County, Romania

Project description


Within this contract, our team elaborated process design for Targu Secuiesc city (Covasna county, Romania) wastewater treatment plant covering preliminary treatment, primary treatment, advanced biological treatment and sludge treatment up to 20% solids content.

The plant was designed for a dry weather maximum daily flowrate of 2.976,0 m3/day serving an equivalent population of 22.542 PE.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, screened wastewater pumping, grit and grease removal, septic sludge acceptance station), advanced biological treatment with sludge stabilization (pre-denitrification for biological nitrogen removal, enhanced phosphorus biological removal), chemical phosphorous removal
  • sludge treatment: excess sludge mechanical thickening and dewatering, and dewatered sludge storage

The following disciplines were covered within the project:

  • Process
  • Hydraulics
  • Mechanical

Sf. Gheorghe WWTP, Covasna County, Romania

Project description


Within this contract, our team elaborated process design for Sfantu Gheorghe city (Covasna county, Romania) wastewater treatment plant covering preliminary treatment, primary treatment, advanced biological treatment and sludge treatment up to 20% solids content.

The plant was designed for a dry weather maximum daily flowrate of 12.491,0 m3/day serving an equivalent population of 94.627 PE.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, screened wastewater pumping, grit and grease removal, septic sludge acceptance station), primary treatment (primary clarification), advanced biological treatment (pre-denitrification for biological nitrogen removal, enhanced phosphorus biological removal), chemical phosphorous removal
  • sludge treatment: primary sludge gravity thickening, excess sludge mechanical thickening, thickened sludge anaerobic digestion, biogas cogeneration, digested sludge mechanical dewatering, and dewatered sludge storage

The following disciplines were covered within the project:

  • Process
  • Hydraulics
  • Mechanical