Costesti WWTP, Arges County, Romania

Project description

The project of the Wastewater Treatment Plant for the city of Costesti (Arges County, Romania) included the feasibility study for existing wastewater treatment line expansion / refurbishment and sludge treatment development up to 22% sludge dry solids content.

The plant was design for a dry weather maximum daily flowrate of 2.443,14 m3/day, equivalent to 12.757 PE (population equivalent).

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, grit and grease removal), primary treatment (primary clarification), advanced biological treatment (nitrogen and phosphorus removal), chemical phosphorous removal, disinfection
  • sludge treatment: excess sludge mechanical thickening, primary sludge aerobic digestion, dewatering and quicklime stabilization

The following disciplines were covered within the project:

  • Process
  • Hydraulics
  • Mechanical
  • Structural
  • Electrical
  • Automation and SCADA
  • Roads, platforms and alleys
  • Landscaping
  • HVAC

Topoloveni WWTP, Arges County, Romania

Project description

The project of the Wastewater Treatment Plant for the city of Topoloveni (Arges County, Romania) included the feasibility study for existing wastewater treatment line expansion / refurbishment and sludge treatment development up to 22% sludge dry solids content.

The plant was design for a dry weather maximum daily flowrate of 1.540,87 m3/day, equivalent to 9.436 PE (population equivalent).

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, grit and grease removal), primary treatment (primary clarification), flow equalization, advanced biological treatment (nitrogen and phosphorus removal), chemical phosphorous removal, disinfection
  • sludge treatment: excess sludge mechanical thickening, primary sludge aerobic digestion, dewatering and quicklime stabilization

The following disciplines were covered within the project:

  • Process
  • Hydraulics
  • Mechanical
  • Structural
  • Electrical
  • Automation and SCADA
  • Roads, platforms and alleys
  • Landscaping
  • HVAC

Stolnici WWTP, Arges County, Romania

Project description

The project of the Wastewater Treatment Plant for the village of Stolnici (Arges county, Romania) included the feasibility study for existing wastewater treatment line expansion and sludge treatment development up to 18% dry solids content.

The plant was design for a dry weather maximum daily flowrate of 416,34 m3/day, equivalent to 2.714 PE (population equivalent).

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, grit and grease removal), flow equalization, advanced biological treatment (nitrogen and phosphorus removal), chemical phosphorous removal
  • sludge treatment: excess sludge mechanical dewatering

The following disciplines were covered within the project:

  • Process
  • Hydraulics
  • Mechanical
  • Structural
  • Electrical
  • Automation and SCADA
  • Roads, platforms and alleys
  • Landscaping
  • HVAC

Cerbu-Albota WWTP, Arges County, Romania

Project description

The project of the Wastewater Treatment Plant for Cerbu – Albota (Arges county, Romania) included the feasibility study for wastewater treatment line expansion and new sludge treatment up to 18% dry solids content.

The plant was design for a dry weather maximum daily flowrate of 1.202,0 m3/day, equivalent to 7.338 PE (population equivalent).

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, grit and grease removal), flow equalization, advanced biological treatment (nitrogen and phosphorus removal), chemical phosphorous removal
  • sludge treatment: excess sludge mechanical dewatering

The following disciplines were covered within the project:

  • Process
  • Hydraulics
  • Mechanical
  • Structural
  • Electrical
  • Automation and SCADA
  • Roads, platforms and alleys
  • Landscaping
  • HVAC

Sinaia WWTP, Prahova County, Romania

Project description

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

The plant was designed for a dry weather maximum daily flowrate of 6.680,0 m3/day serving an equivalent population of 34.150 PE.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, grit and grease removal, septic sludge acceptance station), advanced biological treatment (simultaneous denitrification for biological nitrogen removal through, enhanced phosphorus biological removal), chemical phosphorous removal
  • sludge treatment: excess sludge gravity thickening followed by mechanical dewatering (filter presses) and dewatered sludge storage.
  • others: technological air treatment, technological air heat recovery

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

Breaza WWTP, Prahova County, Romania

Project description

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

The plant was designed for a dry weather maximum daily flowrate of 7.963,0 m3/day serving an equivalent population of 36.000 PE.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, grit and grease removal, septic sludge acceptance station), advanced biological treatment (simultaneous denitrification for biological nitrogen removal, enhanced phosphorus biological removal), chemical phosphorous removal
  • sludge treatment: excess sludge gravity thickening followed by mechanical dewatering (filter presses) and dewatered sludge storage.
  • others: technological air treatment, technological air heat recovery

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

Pojorata leachate treatment plant start-up, Suceava County, Romania

Project description

Pojorata leachate treatment plant, located in Suceava county, Romania was an existing treatment facility designed to treat the leachate generated in the Pojorata municipal waste landfill. The services employed in the contract included leachate treatment process auditing, start-up, maintenance and operation manual drafting.

The plant was designed for a maximum daily flowrate of 50,0 m3/day and included the following treatment:

  • leachate treatment line: leachate buffer storage tank, inlet pump station, grease electo-coagulation, heavy metals lime and polymer precipitation, biological treatment in sequencing batch reactors (SBRs), ammonia stripping and sodium hypochlorite disinfection.
  • sludge treatment: conditioning of excess sludge, precipitation and electro-coagulation sludge followed by mechanical dewatering with filter presses.

The process start-up initially commenced with an initial existing plant process units’ functional assessments, followed by equipment dry and wet testing with clear water. The process continued with leachate run through all the process units, including biological treatment seedings with activated sludge from an existing wastewater treatment plant. Assessment of the treatment processes performance was monitored by leachate sampling and testing at various points along the treatment train.

Bacau WWTP, Bacau County, Romania

Project description

The project of the Wastewater Treatment Plant for Bacau Municipality (Bacau county, Romania) included the design works for the extension and modernization of the biological wastewater treatment for a maximum daily flowrate of 65,237.0 m3/day (221,000.0 PE) as well as sludge treatment up to 35% dry solids content.

The plant’s treatment scheme comprised:

  • wastewater treatment: preliminary treatment (screening, grit and grease removal), primary treatment (primary clarification), rainwater retention, advanced biological treatment (nitrogen and phosphorus removal), chemical phosphorous removal
  • sludge treatment: primary sludge two-stage complete-mix/thickener fermentation, excess sludge mechanical thickening, anaerobic digestion, dewatering, quicklime stabilization

The following disciplines were covered within the project:

  • Process
  • Hydraulics
  • Mechanical
  • Structural
  • Electrical
  • Automation and SCADA
  • Roads, platforms and alleys
  • Landscaping
  • HVAC
  • Technical assistance

Moara leachate treatment plant start-up, Suceava County, Romania

Project description

Moara leachate treatment plant, located in Suceava county, Romania was an existing treatment facility designed to treat the leachate generated in the Moara municipal waste landfill. The services employed in the contract included leachate treatment process auditing, start-up, maintenance and operation manual drafting.

The plant was designed for a maximum daily flowrate of 50,0 m3/day and included the following treatment lines:

  • leachate treatment line: leachate buffer storage tank, inlet pump station, grease electro-coagulation, heavy metals lime and polymer precipitation, biological treatment in sequencing batch reactors (SBRs), ammonia stripping and sodium hypochlorite disinfection.
  • sludge treatment: conditioning of excess sludge, precipitation and electro-coagulation sludge followed by mechanical dewatering with filter presses.

The process start-up initially commenced with an initial existing plant process units’ functional assessments, followed by equipment dry and wet testing with clear water. The process continued with leachate run through all the process units, including biological treatment seedings with activated sludge from an existing wastewater treatment plant. Assessment of the treatment processes performance was monitored by leachate sampling and testing at various points along the treatment train.

Moinesti Sud WWTP, Bacau County, Romania

Project description

Within this contract, our team elaborated full technical proposal for Moinesti Sud city (Bacau county, Romania) wastewater treatment plant covering preliminary treatment, advanced biological treatment and sludge treatment up to 35% solids content.

The plant was designed for a dry weather maximum daily flowrate of 1.296,0 m3/day serving an equivalent population of 6.200 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 (simultaneous denitrification for biological nitrogen removal, enhanced phosphorus biological removal, membrane biological reactor), chemical phosphorous removal
  • sludge treatment: excess sludge gravity thickening, thickened sludge mechanical dewatering and sludge quicklime stabilization, and stabilized 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