These containers must remain closed at all times except when waste is being placed into them. The containers must be visually inspected at least once a week to ensure that they are still in good condition and not in danger of leaking or bursting. The container must have a clearly marked accumulation start date , which is the date when waste was first placed in the container. The containers must be stored on drip pads and cannot be stored with non-compatible materials. Pollution Prevention Opportunities for Spent Solvents.
Many opportunities are available to reduce, reuse, recycle, substitute, or eliminate solvent usage.
Each process which utilizes a solvent should be looked at carefully. Good housekeeping practices and waste segregation can greatly reduce the amount of hazardous waste generated. Hot water parts washers are a viable alternative to degreasing parts. Solvent sinks should be fitted with filters, allowing the solvent to be reused for a longer period of time. If solvents are recycled on-site, solvent filters and residues must be managed as hazardous waste.