Leachate from landfill

Wastewater treatment system with special ClearFox® module

Project Details

Size
600 m³/day
Location
Paderborn, Germany
Completed
2019

Project Delivery

Features
The best price/quality relation in comparison to our competitors all over Europe

Project Results

Before
After
COD
4,000 mg/l
250 mg/l
BOD
100 mg/l
50 mg/l
Ntot
400 mg/l
70 mg/l

Discussion

Situation

AVE – Alte Schanze, Germany is a landfill with production residues (i.e electroplating, fuel ashes), urban, oily and construction waste.

Out of the landfill drains around 200.000 m3 leachate per year, which is collected and which needs to be treated. The old wastewater treatment system was not able to reach the effluent requirements. A new wastewater treatment system was put out to tender by the local government.

Problem

Leachate from landfill is wastewater, which accumulates on the bottom of a landfill. The composition and the hydraulic flow of this water depends on the type of waste which was stored, the annual precipitation and last but not least the age of the landfill.

Older landfills drain less biodegradable organic matter (BOD/COD relation to zero). Typically pollution can be high, nitrogen concentrations (NH4, N02, N03, various hydrocarbons – often organ halogens, chlorides, sulphates, different heavy metals
(i.e. Zn, Cu, Ni, Cr, Cd, Hg, Pb and more)

The water usually shows less turbidity, it has a less brown color and a strong smell can be detected. So in short: it is highly polluted, it has fluctuating hydraulics and it requires various process technologies to meet the effluent requirements, according to the local regulations.

Solution

After a selection period finally PPU was submitted for engineering, procurement and construction of the main part of the new waste water system.

We could offer out of one hand our standard ClearFox containerized treatment modules by looking back on more than 25 years experience of industrial wastewater.

The process technology suggested from PPU was validated by external consulting offices. All modules have been before approved externally, the precasted modules had finally the best price/quality relation in comparison to our competitors all over Europe.

The wastewater can be led through several process steps. The process is fully automatic and the daily flowrate, which is depending on the rainfall can be adjusted manually. All steps can be bypassed, and the flow can be reversed by manually switching valves (i.e. if more nitrate in raw water, then first denitrification, then nitrification)
The following effluents between the treatment steps are achieve

The wastewater treatment system was brought into operation in November 2018. The final acceptance procedure was the end of March 2019. Manufacturing time was 12 weeks.

Technical Data

  1. Dissolved Air Flotation
  2. Ozone treatment
  3. Fixed-bed biological reactor FBR (nitrification- denitrifcation)
  4. Final clarifier as lamella separator

 

Capacity: 600 m³/d, max. 25 m³/h

Input: Landfill waste water

Output: German, European and International standards

FAQ

Yes, ClearFox® technology is modular and can be adapted to the specific requirements of your project. Our experts will analyze the composition of your wastewater and design a customized solution that meets both regulatory requirements and your operational needs.

The solution is particularly suitable for landfill leachate, but also for industrial wastewater with high organic loads, heavy metals or complex chemical compounds. It can be adapted for various industries, such as the chemical industry, food production or metal processing.

Container-based systems are compact, quick to install and expandable. They can be delivered prefabricated, which significantly reduces construction time and installation costs. They are also flexible and can be relocated or expanded as needed.

The plant has been designed to meet the most stringent environmental regulations, including European and national limits for nitrogen, phosphorus, COD and heavy metals. We adapt the plant individually to the applicable regulations at your site.

The operating costs depend on various factors, including the amount of wastewater, the pollution load and the cleaning processes selected. However, the energy-efficient technologies of the ClearFox® modules optimize the running costs. We would be happy to prepare an individual cost-benefit analysis.

Project Gallery

Featured Modules

Similar Projects

Have A Question? Get In Touch.
[contact-form-7 id="b86e17d" title="Have a question about your own project?"]
Item #3