Markets & References

Our client, a major player in the production and supply of electricity in Newfoundland and Labrador (Canada), handles the generation and distribution of 80 % of the energy consumed in the province.

CTP environnement was asked to define and implement a solution for treating effluent generated by the partial demolition of a reactor building’s structure for subsequent renovation. The effluent in question was liquid sludge containing mineral matter (demolished concrete) and metal (descaled steel) at a concentration of 5 to 20 g/L.

Our client, a major Spanish oil company asked CTP ambiente to clean the refinery’s rainwater tank. As the estimated volume of sludge was around 4000 m³ (5235 yd³), the operation involved providing a solution that minimized the volume of sludge to be disposed of, thereby reducing costs.

Our client needs to drain the sludge from the retention basin on its production site every year, to ensure its plant runs smoothly, while complying with the standards for discharges into the natural environment.

A site burning 600,000 tons of waste annually has awarded CTP environment UK for performing the cleaning of its Air Cooler Condenser (ACC). The ACC system consists of twelve motors with A-frame design.

A major player in the chemical industry asked CTP environnement to clean the packing in a stripping column on its production site. Previously this had been carried out by removing the packing and mechanically cleaning it in a washing area

Steam condensers in nuclear power plants are made up of several smaller condensers, which themselves comprise approximately 21,000 metal tubes circulating cooling water. Due to the hardness of water drawn from the natural environment, the cooling tubes are subject to regular and significant scaling and need to be cleaned using ultra-high-pressure water jets (UHP).

Our client discovered holes in heat-exchangers within the steam generation circuit for 3 fired heaters of a steam cracker unit. He conducted thickness checks which revealed a loss in the thickness of tubes and the presence of corrosion on the hot side of one heat exchanger. After repairs involving metal work and boiler work, CTP environnement was contracted to carry out pre-passivation on couple pieces of equipment - two fired heaters and after the replacement of the third fired heater.

A major fire broke out on our client’s site during maintenance of a waterjet tank. The fire-fighting water contained different concentrations of product and fire debris (soluble and insoluble carbon pollution) in addition to an emulsifier, which was usually biodegradable.

A major domestic waste incineration plant operator contacted CTP environnement in order to identify and customise dry cleaning solutions for 2 fired heater boiler units, each with a capacity of 50 T/hour.

During the periodic shutdown of part of its plant, our client contacted CTP environnement for the complete cleaning of facilities in which the method used could no longer be sustained because of changes to regulations.

In order to guarantee the continued operation of one of its French sites, a major mining and quarrying operator asked CTP environnement to manage its pit water. This water needed to be treated before being discharged in a sensitive area (Natura 2000). Acid and high concentration in suspended solid was the main concerns.

Our client, a major player in the production of nitrogen fertilisers, asked a number of service providers to help it comply with the statutory monitoring requirements for a tank containing concentrated ammonia for the purpose of its reclassification.

A thermal power plant in New Caledonia asked CTP environment Asia Pacific to carry out chemical descaling of a steam condenser.

CTP environment Asia Pacific developed an optimum chemical cleaning procedure, which incorporated effectiveness, in terms of the residue to be dissolved, as well as protecting the integrity of the materials exposed.

A cogeneration power plant hired CTP environment Asia Pacific for its expertise in chemical cleaning

A world class sugar industrial, based in France and in several other countries (Brazil, Romania, Indonesia, etc.), has asked CTP environnement to design and set up a mobile solution to treat the effluents from the production campaigns (beet base).

The cooling water system of a power generation site had become contaminated with hydrocarbon pollution.

This circuit, with a volume of 180 m3 (234 yd3), had a total oil and grease concentration of 320 mg/l with a maximum target of 10 mg/l, i.e. a target decrease of 97 %. The objective was to intervene effectively on this circuit without stopping production.

CTP environnement set up a treatment solution that provided the customer with several reuse options:

• Recycling on an ultra-high pressure stripping unit with the following water quality constraints:
  T° < 30°C, pH 6-8, TSS < 5 ppm, COD < 20 ppm, metals < 5 ppm, conductivity < 1000 µS/cm²
• Refrigeration of pre-treated water
• Washing and rinsing water