
Water contamination can turn an otherwise usable odorant inventory into an operating problem. Moisture can accumulate in odorant storage systems through wet gas, tank breathing, transfer activities and other operating conditions. Left unresolved, water can interfere with odorant handling and injection, contribute to cold-weather problems and ultimately force the operator to remove and replace product. MRR developed Arida™ as a field-deployable process for treating water-contaminated odorant and, where the product remains suitable for recovery, returning it to usable condition. The objective is straightforward: remove the water while preserving the odorant.
Arida is designed to address water contamination without automatically sending the entire odorant inventory for disposal.
The treatment can be brought to the affected odorant system, reducing the handling and logistics associated with full product replacement.
Sampling and analysis establish whether the treated odorant meets the project-specific criteria for reuse.

Odorant storage systems are intended to keep the product isolated and controlled, but moisture can still enter through the gas supply, residual water from upstream equipment, contaminated transfer operations, temperature and pressure changes, or storage-vessel breathing where an inadequately sealed system draws atmospheric moisture. Over time, accumulated water can dilute or contaminate the odorant inventory, with effects becoming particularly apparent during cold weather, at low points in the system, or when contaminated liquid reaches filters, tubing or injection equipment. Identifying the source of moisture is therefore as important as removing the water already present.
Traditional remediation may require the contaminated inventory to be removed, transported for treatment or disposal, and replaced with new odorant - Arida provides another option. MRR first evaluates the affected system and the condition of the odorant, then, where recovery is appropriate, deploys the Arida process to remove water from the contaminated product while retaining the odorant for potential reuse. Treatment is controlled around the actual condition of the product rather than assuming every contaminated tank requires the same intervention, since contamination events differ and recoverability is evaluated before the final remediation plan is defined.


Removing visible water is not the same as demonstrating that the odorant is ready to return to normal service. MRR uses sampling and analytical verification appropriate to the project to evaluate the product before and after treatment against agreed acceptance criteria, and can also help investigate the conditions that allowed moisture to accumulate - storage-vessel integrity, blanket gas quality, transfer procedures, upstream moisture, filtration and equipment configuration - since correcting the source reduces the risk of repeating the same event. The Arida approach is therefore broader than drying alone: recover the product, verify its condition and understand why the contamination occurred.