In-situ Remediation Techniques
Soil and Groundwater Remeditation

Boden- und Grundwassersanierung

Planreal offers comprehensive solutions for the decontamination of contamined soils and groundwater. Using innovative, biological In-situ methods, we effectively eliminate contaminants such as:

  1. MKWs, MTBE – mineral oils and their additives
  2. BTEX – (benzene, toluene, ethylbenzene, xylenes) and trimethylbenzenes
  3. PAHs (polyaromatic hydrocarbons) - naphthalene, acenaphthene, fluorene, phenanthrene
  4. HCs (Chlorinated Hydrocarbons) – PCE (perchloroethylene), TCE (trichloroethylene), cis/trans DCE (cis/trans-dichloroethene) and VC (vinyl chloride)
  5. Heavy metals - Pb, Cd, Zn, Ni, Co, As, Cr(VI)
  6. Cyanide, pesticides/fungicides, pentachlorophenol
Environmental Services Soil & Groundwater Remediation Land-Management Depth Profile Measurement Laboratory Analysis Water Sampling Groundwater Monitoring Sites

Planreals proven 5-Point Strategy for Successfull Remediation

With our many years of experience and expertise in the remediation of soil and groundwater contamination, we offer our customers a professional and efficient remediation strategy tailored to each site and its contaminants.

1. Preliminary Investigations

Review of site history and exploration data:

  1. Identification of primary contaminations in the unsaturated zone (Vadose Zone) and the aquifer.
  2. Review of site plans, groundwater contour maps, and other previously conducted investigations.
  3. Chemical analyses of soil and groundwater samples.
  4. Groundwater modeling and identification of groundwater zones (FP600 Technologie).

Vorteile: Fundierte Sanierungsplanung, Minimierung von Risiken.

Professional water sampling

2. Laboratory Feasibility Study

Collection and Laboratory Analysis of Soil and Water Samples:

  1. Isolation of site-specific microbial consortia (FROG-Technologie®).
  2. Determination of current microbial pollutant degradation (RIO®-Tests).
  3. Determination of ecotoxicity (AvaTox®-Tests).
  4. Optimization of microbial contaminant degradation: Addition of nutrients, minerals, trace elements, or microbial consortia (ONE-Technology® and/or BioClean Technology®).

Advantages: The results of the laboratory feasibility study serve as the basis for developing a tailored remediation concept.

Laboratory feasibility study

3. Test Field Trials

Laboratory results are applied to a representative test field at the site:

  1. Injection trials to determine the permeability and dispersion of active substances (e.g. ONE® and RedoxPrep®) in the aquifer.
  2. Correction of the groundwater environment (anaerob oder aerob) for optimized in-situ microbial pollutant degradation (ONE Technology®).
  3. If necessary, addition of specific microbial consortia (BioClean Technology®).
  4. Regular monitoring of the aquifer through chemical analyses and laboratory tests.

Advantages: Provides the basis for developing a sustainable, cost-efficient remediation concept.

Field test trials groundwater analysis

4. Site Remediation

Implementation of the optimized, active microbial remediation from the test field on a large scale, taking into account the remediation goals:

  1. Compliance with limiting target values in the individual areas (industrial or residential).
  2. Achievement of a consistently retrograde (declining) contamination plume.
  3. Safeguard measures to prevent the spread of the contaminant plume during ongoing active remediation (biobarriers).
  4. Regular monitoring of the aquifer and contamination plume through chemical analyses and laboratory tests.
  5. Optimization of microbial contaminant degradation with sustainable long-term effects.

Advantages: Efficient, sustainable in-situ remediation without disrupting ongoing operations.

Remediation of contaminated sites

5. Completion of Remediation

The active remediation measures can be concluded when:

  1. The pollutant concentrations in the remediation areas and at the property boundary are consistently below the given threshold values.
  2. The remaining natural degradation capacity of the in-situ bioreactor is sufficient for the remaining diffuse contamination, and active remediation is replaced by regular monitoring* of the aquifer (Monitored Natural Attenuation - MNA).
  3. The implementation of biological in-situ remediation has reached the point where the contaminated site no longer poses a risk to human health and the environment.


* Regular monitoring ensures that corrective measures can be taken promptly to optimize the bioreactor at any time, without exceeding the financial budget for the client.
Land-Management

SERVICES AND EXPERIENCES