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Industrial effluent

Sludge clearing & dewatering
Reducing disposal costs
Waste recycling

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Industrial effluent Sludge clearing & dewatering

An everyday
situation for
many industries

The vast majority of industrial operators face the issue of sludge settling in their facilities (with the associated loss of storage capacity). The following actions are commonly and regularly carried out:

  • Sludge pumping from storage tanks (process water tanks, stormwater reservoirs, lagoon, etc.)
  • Continuous or intermittent pre-treatment of process effluent (filtration)
  • Bypassing existing equipment (dewatering units)

An integrated dewatering operation


From pumping out material to its disposal, CTP environnement offers a useful service, which saves time and money:

  • Effectiveness: reducing both the equipment mobilisation and treatment time: up to 30 tons of dry matter per hour and 250 m3 (327 yd3 of liquid sludge treated per hour,
  • Can be carried out keeping the storage facility online, minimising the impact on the rest of the site operation
  • Allow the disposal costs to be segregated from the pumping/dewatering cost with an extremely competitive overall cost per ton of dry matter

The environmental benefits of our technology: low energy consumption (static dewatering) and potential recycling of dewatered sludge (compatible with landscape integration and/or phytostabilisation).

Highlight on Geofloc® mobile units


Modular, compact and automated, Geofloc® skids are dewatering units equipped with an online flocculation system that can be deployed very rapidly in comparison with conventional processes (centrifugation, filter presses, etc.).

With treatment and dewatered sludge storage capacities from 1 to 1000 m3 (1308 yd3), they can be combined with other CTP environnement treatment processes (chemical cleaning and mobile units) as well as clearing/dredging units.

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Canada

Offline cleaning of cogeneration boilers and treatment of effluent produced

Offline cleaning of economiser in cogeneration boilers using our Neutrol® process combined with the Geofloc® process - dewatering and neutralising the effluent produced

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.

France

Treatment of radioactive effluent from a nuclear power plant’s reactor building

Online dewatering of sludge generated by the hydrodemolition of concrete blocks

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.

Spain

Refinery’s rainwater tank cleaning and dewatering

Tank cleaning and sludge dewatering using the Geofloc® process

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.

France

Clearing sludge from a retention basin

Pumping and dewatering using geotextile membranes

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.

France

Sludge clearing and dewatering for a final ATEX zone tank

Sludge dewatering using the Geofloc® process and geotextile membranes in a refinery

Our client, a major player in the refining industry, asked CTP environnement to clear out the final tank located close to their plant. The discharged effluent had created a build-up of sludge at the bottom of the tank of around 120 m3 (157 yd3) with 35 % dryness (estimate for an area of 200 m2 /2153 ft2). After draining and treating the supernatant water, the sludge accumulated at the bottom of the tank needed to be cleared and dewatered.

United Kingdom

A comprehensive treatment solution during a production shutdown

Chemical cleaning followed by effluent treatment using a physico-chemical unit with lamellar settling: Clearflow®, combined with a Geofloc® dewatering process

A major UK player in the O&G asked CTP environment to perform specific work during a maintenance shutdown.

Malaysia

A mobile treatment solution to manage contaminated rainwater in a refinery

Effluent treatment using an Aeromobil® dissolved air flotation unit bundled with Geofloc® sludge dewatering unit

A refinery in south-east Asia suffered torrential rain during the monsoon season. A Remote Impounding Basin (RIB) is used to handle the stormwater runoff, prevent flooding and pollution of the nearby environment.
The refinery issued a call for tenders, in order to find a company able to further treat this contaminated rainwater stored in the RIB in line with the applicable discharge standards.

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One of the key services in our historic business!

Energy from waste - Dry cleaning service

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3 rd January 2022
Best wishes !

All our teams wish you a happy new year !

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18th October 2021
A glance at the POLLUTEC exhibition

With 4 days of exhibition in the water sector, we took advantage of this strategic location to showcase our effluent treatment solutions and meet all our partners on site.

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