Treatability Test
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.

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. |