Waste water treatment plants
Research, design, supply of equipment and commissioning of waste water treatment plants, water supply and sewerage systems; consultancy services.
Waste water treatment plants
Research, design, supply of equipment and commissioning of waste water treatment plants, water supply and sewerage systems; consultancy services.
About Us
BORA Ltd was established in 1991. Its main activities are in the field of waste water treatment – residential treatment plants and treatment of waste water from the food processing industry and from livestock farms. During these more than 20 years of history, the company has established a reputation in Bulgaria and abroad and has implemented a large number of projects. It participates in the design of waste water treatment plants jointly with Western consultancy companies with a proven track record in the water industry.
BORA Ltd is certified under international standard ISO 9001:2008, which ensures the high quality of our services.
Operations
The main business of BORA Ltd is in the field of waste water treatment: residential waste water treatment plants and treatment of waste water from the food processing industry and from livestock farms.
Our key business principle is to take full ownership of the project deliverables under the respective contract, from its assignment to its completion. During the whole process, we assist the client with all necessary coordination efforts, tender procedures, expert’s opinions, etc. We have established a working process which ensures a constant and comprehensive information flow to the client at all stages of the project and allows for on-going adjustments and changes.
The company elaborates full working designs for the construction of waste water treatment plants:
Team
The company employs all necessary specialists to meet the design requirements of Regulation No 4/ 2001 on the scope and contents of investment projects and has a Certificate of Full Legal Capacity for Design and offers state-of-the-art technological projects. Graphic drawings are elaborated using modern computer and office equipment.
Projects
WWTP Samokov
Waste Water Treatment Plant – Samokov
Client: Sofia Municipality
Funding: Sofia Municipality
Period: 1992–2001
Terms of Contract: Design, Designer Supervision, Commissioning and Tuning
Project Background: The plant was designed to treat the waste water of the town of Samokov, which is the main polluter of Iskar Dam. It was designed for a population equivalent of 125,000 and Qav.=44,000 m3/day.
The project was launched in 1991 with the conclusion of a general supply of equipment contract with PASSAVANT WERKE AG – Germany. The supplier elaborated a technical design and applied state-of-the-art water treatment technologies. In January 2001, the mechanical, biological and sludge plants were commissioned. At the time, WWTP Samokov was the most advanced plant of this nature on the Balkan Peninsula.
Project Activities: BORA performed the project design for all parts and aligned the technical documentation of the supplier with the Bulgarian standards. During construction, the company performed on-going designer supervision and participated in the commissioning of the plant and equipment.
WWTP Sofia
Waste Water Treatment Plant – Sofia
I. WWTP Sofia – water line reconstruction
Client: GKW CONSULT – Germany
Funding: EC – Phare
Period: 02–09.1999
Terms of Contract: Local consultant – subcontractor
Project Background: The objective of this project was the elaboration of the tender documentation for the reconstruction and expansion of the existing plant, more specifically the water line. The reconstruction was necessary due to the poor condition of the equipment, and the expansion – due to the need for an expansion of the plant’s capacity.
Project Activities:
As subcontractor of GKW, BORA carried out:
- collection and analysis of the available project documentation;
- inspection and assessment of the condition of the plant and equipment;
- technical assistance and consultancy services for the elaboration of the technical design;provision of technical support for the project.
II. WWTP Sofia – sludge plant reconstruction
Client: Sofia Municipality
Terms of Contract: Design, Designer Supervision
Funding: Sofia Municipality
Period: 1994–2001
Project Background: The existing plant was designed in the period 1972–1974 with Soviet equipment. It was commissioned in 1981. The purpose of the reconstruction was improvement of the efficiency of the sludge plant.
Project Activities: BORA elaborated the working design on the basis of the equipment and technology supplied by Roediger. Its experts performed on-going designer supervision during the construction works.
WWTP Shumen
Waste Water Treatment Plant – Shumen
Client: Shumen Municipality
Funding: Shumen Municipality
Period: 1998–2002
Terms of Contract: Design, Designer Supervision
Project Background: At the time the town of Shumen was not equipped with a treatment plant. The waste water from the city was discharged into Poroyna River, a tributary of Kamchia River, and created a major environmental problem.The project was launched in 1994. It was decided to implement the project in two stages – a mechanical stage with a sludge dewatering unit and a subsequent biological stage.The first stage began with the conclusion of a general supply of equipment contract between Shumen Municipality and PASSAVANT – WERKE – Germany. BORA was engaged to elaborate a working design of the WWTP for a population equivalent of 160,000.
Project Activities: BORA elaborated working designs for all parts of the project and performed designer supervision during the construction works. Its experts aligned the technical documentation of the equipment with the Bulgarian standards and provided technical support for Shumen Municipality for the overall coordination of the project.
WWTP Sliven
WWTP Sliven – sludge plant reconstruction
Client: Sliven Municipality; Ministry of Environment and Water (MEW)
Funding: Sliven Municipality; The National Fund for Environmental Protection of MEW
Period: 1994–2001
Terms of Contract: Design, Designer Supervision, Commissioning and Tuning
Project Background: The existing plant was designed in the period 1972–1974. It was commissioned in 1981. The purpose of the reconstruction was modernisation of the technological design of the sludge plant. The project includes an overhaul and modernisation of the technological design of the sludge line.
Project Activities: BORA elaborated the working design on the basis of the equipment supplied by Huber, Germany. Its experts performed on-going designer control during the construction works and carried out the commissioning and tuning of the installed equipment.
WWTP Obzor–Byala
Waste Water Treatment Plant – Obzor–Byala
Client: Nesebar Municipality
Funding: Nesebar Municipality
Period: 1993–2003
Terms of Contract: Design, Designer Supervision
Project Background: The towns of Obzor and Byala are located at the Black Sea coast, in close proximity to each other. The first project dates back to the 1980s and the first construction works were completed in 1993. BORA was awarded the contract for modernisation of the working design at a tender held in 1993. The Danish Environmental Protection Agency (DEPA) funds the delivery and installation of the mechanical and electrical equipment for the water line.
Project Activities: BORA updated the working design and performed designer supervision. In connection with the DEPA Project, BORA provided technical support in the capacity of a local designer.
WWTP Nessebar–Sunny Beach–Ravda
Waste Water Treatment Plant – Nessebar–Sunny Beach–Ravda
Client: Nesebar Municipality
Funding: Ministry of the Environment and Water
Period: 2004–2005
Terms of Contract: Design, Designer Supervision, Commissioning and Tuning
Project Background: The project involves the expansion, reconstruction and modernisation of the existing WWTP Ravda in two stages. The construction of the new capacities in stage one achieved efficient waste water treatment for a population equivalent of 75,000.The project was launched in 2004 after the completion of the tender procedure for stage one. The waste water was run through the expansion in June 2005.The used sequencing method (SBR) for waste water treatment is a modern technology with fully automated processes.
Project Activities: BORA elaborated the working design for all parts, designer supervision and commissioning of the plant.
WWTP Pazardzhik
Waste Water Treatment Plant – Pazardzhik
Client: Pazardzhik Municipality
Funding: ISPA Programme of the EU
Period: 2005–2008
Terms of Contract: Joint design with INFILCO, Spain
Project Background: The project for the construction of a new waste water treatment plant for the town of Pazardzhik with a capacity for a population equivalent of 100,000 was launched in 2005 after the completion of an international tender procedure.
Project Activities: BORA elaborated the working design jointly with the Spanish company INFILCO.
WWTP Ruse
Waste Water Treatment Plant – Ruse
Client: HOCHTIEF – Germany
Funding: ISPA Programme of the EU
Period: 2008–2011
Terms of Contract: Design, Designer Supervision
Project Background: The plant was designed for treatment of the waste water of the town of Ruse, which was one of the polluters of the Danube River. The plant has capacity of a population equivalent of 240,000 and Qav/day = 52,500 m3/day. The project was a part of a programme for design of urban waste water treatment plants for towns with a population equivalent of over 10,000 under Operational Programme Environment. The site was commissioned in 2011.
Project Activities: BORA elaborated a working design for all parts jointly with Diering, Germany, aligned the technical documentation with the Bulgarian standards and carried out Designer Supervision for the project.
WWTP Haskovo
Waste Water Treatment Plant – Haskovo
Client: SP Holding
Funding: ISPA Programme of the EU
Period: 2008–2009
Terms of Contract: Design using the technology of Biwater, England, Designer Supervision
Project Background: The plant was designed for treatment of the waste water of the town of Haskovo, which was one of the main polluters of Haskovska River. The plant has capacity of a population equivalent of 98,667 and Qav/day=29,733 m3/day.
The project was a part of a programme for design of urban waste water treatment plants for towns with a population equivalent of over 10,000 under Operational Programme Environment.
Project Activities: BORA elaborated a working design for all parts and aligned the technical documentation with the Bulgarian standards, carried out Designer Supervision for the project.
WWTP Provadia
Waste Water Treatment Plant – Provadia
Client: Provadia Municipality
Funding: Operational Programme Environment 2007–2013
Period: 2011–2013
Terms of Contract: Design, Designer Supervision, Commissioning and Staff Training
Project Background: The project involved the expansion, reconstruction and modernisation of WWTP Provadia, which was outdated and physically obsolete. In view of the higher requirements of the recipient and the higher water volumes, a new technological design was selected, which solves the environmental problems related to the pollution of the Black Sea. The plant is an element of a programme for design of urban waste water treatment plants for towns with a population equivalent of over 10,000 under Operational Programme Environment and was designed for a population equivalent of 16,770 and Qav/day=2,993 m3/day. The site was commissioned in 2013.
Project Activities: BORA elaborated the entire working design for all parts, carried out designer supervision during the construction works, trained the staff of the plant, prepared operating instructions and supported the testing and commissioning of the new WWTP.
WWTP Gabrovo
Waste Water Treatment Plant – Gabrovo
Client: Gabrovo Municipality
Funding: Operational Programme Environment 2007–2013
Period: 2013– 2015
Terms of Contract: Design, Designer Supervision, Commissioning and Staff Training
Project Background: The project involved the expansion, reconstruction and modernisation of WWTP Provadia, which was outdated and physically obsolete. In view of the higher requirements of the recipient and the higher water volumes, a new technological design was selected. The plant is an element of a programme for design of urban waste water treatment plants for towns with a population equivalent of over 10,000 under Operational Programme Environment and was designed for a population equivalent of 99 780 and Qav/day =18 505 m3/day.
The site was commissioned in 2015.
Project Activities: BORA elaborated the entire working design for all parts, carried out designer supervision during the construction works, trained the staff of the plant, prepared operating instructions and supported the testing and commissioning of the new WWTP.
WWTP Sozopol
Waste Water Treatment Plant – Sozopol
Client: Sozopol Municipality
Funding: Operational Programme Environment 2007–2013
Period: 2013–2015
Project Background: The plant is an element of a programme for design of urban waste water treatment plants for towns with a population equivalent of over 10,000 under Operational Programme Environment and was designed for a population equivalent (PE) of 64 560 and Qav/day =10 877 m3/day. The project involves mechanical and biological treatment, de-nitrification, dephosphorization and disinfection of the raw wastewater with sludge stabilization and thickening to a state suitable for deposition.
The site was commissioned in 2015.
