Session Details
Session 10: Light Metals Processing
Abstract Number:
135
This presentation will help to improve the sampling and analysis of wastewater, thereby improving compliance with federal categorical and local regulations. Once the audience learns how to “know their water” they will be better able to manage their wastewater system.
Topics:
Managing Water Usage/Waste Management Minimization
All surface finishing operations that discharge treated wastewater are held to federal categorical standards, local limits, and less frequently an NPDES permit. Part of the regulation will be an expectation of sampling and analysis. The frequency and testing required will vary and drives difficulty staying in compliance. Sampling options will be driven by permit and analytical needs. The options can vary between automated composites or grab samples. This presentation will cover types of sampling and analysis that are available or preferred.
In addition to testing per permit regulations, regular onsite analysis will give a greater awareness of wastewater treatment performance. However, this will require investment in analytical equipment and the training to be proficient. Equipment selection can range from colorimetric or wet testing to Atomic Adsorption or ICP technologies. Since the cost and complication can vary widely, it is useful to have a guide to selection and will be presented here.
Through regular onsite testing, the facility can identify problems with treatment before contaminants are released. This knowledge will also allow one to balance the load of concentrated waste(s) into the treatment system. For example, a plant may want to treat a concentrated zinc tank in wastewater. Through testing, a bleed rate can be dialed in that will allow for successful treatment. This will prevent a potential violation and by treating, will prevent expensive third party hauling of waste. By knowing your water, you can best manage your operations.