In-Situ Remediation and Treatment

In-situ remediation is by far the most cost effective method to resolve large scale contamination challenges – whether the contamination originates from mining and industry, from inadequate sanitation and wastewater infrastructure, from farming pesticides or other spills or pollution related to human activities. The solution comes also with attractive environmental and social benefits.

Highlights:

  • The biochemical remediation process happens in the aquifer, natures free bioreactor. Boreholes for injections and sensors are the only fixed elements
  • Solution is very light on energy – grid connections are rarely a necessity
  • Reagents are sourced locally, if possible to minimize transport and other costing
  • A thorough site investigation precedes all implementations to ensure the required results at most affordable way and that any thinkable risks are mitigated and eliminated

Please find from under downloads more detailed technical descriptions for contamination challenges most relevant for your needs.

 

Toolbox

With the widest toolbox on the market we have the luxury to always select the most appropriate method or a combination of methods under the given conditions to reach the required results at the lowest possible costing. We adapt to the conditions and not the other way around.


In-situ-Bioremediation

  • Direct gas injection (O2; H2, CH4)
  • Anaerobic treatment (gas, liquid, solid reagents)
  • Bio-augmentation
  • Thermally enhanced microbiology

In-situ Chemical Remediation

  • •ISCO-Technology (Fenton‘s, Permanganate, Persulfate or Ozone)
  • Carrier gas injection of Oxidant Aerosols

Physical In-situ Remediation technology and methods

  • Geo- and Solar energy based contaminant mobilization
  • Contaminant solubilisation of free product
  • Targeted solids replacement

Combinations of the above and combining with ex-situ treatment

Technologies

• Mobile and fixed containerized control units, injection lances and all related hardware

• Multi-parameter in-situ sensor technologies
  • Aquifer-integrated (AISK), measuring-point-integrated (MISK)
  • Cloud communication and remote access
  • Redox potential, conductivity, temperature, dissolve oxygen, pH, ion selective electrodes, pressure, hydraulic gradient, gas saturation sensor technology

Services

• Solution design

  • Desktop, lab- and site feasibility and design study
  • Process design, construction and implementation

• Operations and Maintenance

  • Day to day operation, remote monitoring and control

  • Scheduled- and un-scheduled maintenance

Capabilities

In-situ remediation and treatment is applicable to most organic- and inorganic contaminants that may threaten the natural ground- and surface water resources. Here are listed examples of some contaminants our team has experience of.  

Organic Contaminants

• Hydrocarbons
  • VOC, SVOC, LNAPL, PHC etc
• Multi-parameter in-situ sensor technologies
  • DNAPL, TPC,CTT etc

• Multi-parameter in-situ sensor technologies

Inorganic Contaminants

• Sulphuric Contamination

  • Sulphate, Sulphide

• Nitrogen Contamination

  • Nitrate, Nitrite and Ammonium

• Heavy metals, soluble metals and metaloids

  • Iron, Manganese, Chrome, Aluminium, Zink, Lead etc

Note: In-situ remediation and treatment isn’t applicable in all situations. For example, the method isn’t able to remove certain salts like chloride and fluoride on its own and economic feasibility is typically subject to sufficient scale. All cases will be evaluated on case by case basis.

 

 


AquaMatters  |  info@aquamatters.co.za