Treatability Testing

At BioRangers, we carry out tests to confirm "suitability" using soil and groundwater from the actual site. Conducting tests in advance makes it possible to draw up a lean, waste-free remediation plan and to make high-precision decisions.

Evaluate inhibition and material applicability through changes in microbial counts
Determine whether remediation goals can be achieved based on contaminant concentration trends
Assess the need for pretreatment or the combined use of methods

SERVICE FLOW

Service Flow

How it works

1Inquiry
2Sample shipment
3Degradation test
4Results report

Suitable → draw up a remediation plan

Not suitable → consider pretreatment or combined methods

* Test results are reported approximately 2–4 weeks after the samples arrive.

OVERVIEW

Test Overview

	Soil & groundwater	Wastewater
Required samples	Actual contaminated soil (1–2 kg) Actual contaminated groundwater (500 mL and up)	Wastewater (500 mL–20 L) * depends on the test method
Test period	From 1 week (negotiable)	From 3 days (negotiable)
Analysis & measurement items	pH, nitrogen & phosphorus concentration, microbial count / oil odor & oil sheen / TPH & VOC concentration, etc.	pH, nitrogen & phosphorus concentration, microbial count / odor & clarity / * official analysis available as an option
Turnaround	2–4 weeks (depending on the test period)	1–2 weeks (depending on the test period)

PILOT TEST

On-Site Pilot Testing

As a step that bridges laboratory treatability testing and actual application in the field, we can also conduct an on-site pilot test. This confirms the influence of site factors such as the distribution of contamination and groundwater flow, and reflects the results and any issues in the construction plan.

	Laboratory test	On-site pilot test
Purpose	Confirm inhibition of microbial growth	Confirm the influence of site factors (distribution, flow)
Overview	Materials are added to site soil and groundwater, and applicability is evaluated using before-and-after data	A test plot is set up on site, and materials are actually applied for evaluation
Characteristics	Simple and fast / site factors cannot be evaluated directly	A comprehensive evaluation that reflects site factors / results feed into the design

MONITORING

Remediation Progress Monitoring

During remediation work (countermeasures), regular monitoring is required to confirm whether the environment is one in which microbes can function properly. We collect soil and groundwater, perform analysis and measurement, monitor conditions on site, and organize the resulting data to decide on the next steps, such as adding nutrients and bio formulations or supplying moisture and oxygen.

Fluorescence microscopy of oil degradation over a 12-week treatability test (0–12 weeks)

OVERVIEW

Monitoring Overview

We assess whether the environment is one in which microbes can continue to function, and confirm that remediation is progressing properly. When necessary, we also check the condition of the soil and groundwater directly on site.

Item	Details
Periodic sampling & analysis	We periodically collect soil and groundwater and analyze and measure the required items.
On-site confirmation	When necessary, we check the condition of the soil and groundwater on site.
Data organization & evaluation	We organize the acquired data and decide whether to add nutrients and bio formulations or to supply moisture and oxygen.