A trickling filter is a bed of gravel or plastic media over which pretreated wastewater is sprayed. This publication explains how trickling filters treat wastewater and gives tips on how to maintain them. (4 pages)
More choices in Environment & Natural Resources
This manual covers all steps related to the selection of equipment, evaluating proposed system designs, implementing watering schedules that conserve water while producing quality landscapes.
This course will inform participants about riparian and watershed processes, the benefits that healthy riparian areas provide, and the tools that prevent and/or resolve degradation and improve water quality.
An aerobic septic system, or aerobic treatment unit (ATU), uses oxygen to breakdown both dissolved and solid constituents into gases, cell mass, and non-degradable material contained in wastewater. This online course will teach you how to properly maintain and operate your ATU. You will have 30 days from the day you register to complete this program. If you do not complete the program within this limit, your registration will expire, and you will need to pay the registration fees again to start over.
Welcome to the Texas Watershed Steward online course! Here you will learn about watersheds, water quality, and watershed management and gain access to all of the information supplied in the face-to-face workshops we hold around the state.