Wastewater

Extension at the University of Nebraska–Lincoln is actively involved in programming that helps homeowners, industry, and youth audiences understand onsite wastewater treatment systems for handling domestic sewage. Treatment of wastewater using onsite systems, such as septic tanks and drainfields, plays a very important role in protecting the water and environment of Nebraska and supporting economic development. As a result of Extension programming, Nebraskans benefit from improved water quality and a cleaner environment.

Septic systems operation and maintenance overview

Pump tank regularly. Have a professional inspect and pump the tank. Conserve water and spread usage over a period of time. Manage solids. Keep hazardous materials out. Let the system work naturally. Avoid drainfield compaction. Avoid introducing excess water to the drainfield. Maintain structural integrity of the drainfield.

Troubleshooting Septic Systems

Problems sometimes occur. Some of the problems that occur include: sluggish drainage, contaminated drinking water, wastewater surfacing in the yard, odors, and pipes freezing.

How Does a Lagoon Work?

A traditional lagoon system is a two part system. A traditional system has plumbing from the house and a lagoon.

What happens in the lagoon?

Evaporation reduces the liquid volume of wastewater, returning water vapor to the environment. Solids settle to bottom and form sludge. There is an aerobic zone at the top of the wastewater layer where air movement introduces oxygen and aerobic microorganisms convert waste to carbon dioxide, ammonia, and phosphates.

Design & Size Requirements

Lagoon size is determined by the number of bedrooms, as well as the annual evaporation and precipitation rates for the geographic region. The lagoon size is NOT based on the square footage of the house, or the number of people living in the house because occupancy can change.

Operation & Maintenance

Now that you know how a lagoon works, here is what you need to do to operate and maintain your system for maximum efficiency and long life. Minimize your exposure to wastewater - it contains disease-causing bacteria and viruses. Wear waterproof gloves, wash hands or shower, and disinfect breaks in skin after exposure to wastewater.

Troubleshooting

Problems sometimes occur. Lagoon depth may fall below 2-foot minimum due to leak in artificial liner, clogged inlet pipe, low flow rate into lagoon, holes in dike from plant roots or burrowing animals, not enough clay in natural soil liner or not compacted.

Other Systems

Some areas in Nebraska are not appropriate for a conventional septic tank/drainfield system or a residential lagoon. We consider these environmentally vulnerable areas.

Wastewater - What Is It?

Wastewater comes from ordinary living processes: bathing, toilet flushing, laundry, dishwashing, etc. It comes from residential and domestic sources.

September is National SepticSmart Week

This year’s National SepticSmart Week is September 18-22, 2017. The Environmental Protection Agency (EPA) uses a week in September each year to focus on improved awareness of proper operation and maintenance of septic systems across the United States. The wastewater of approximately 25 percent of the population of the United States is treated by on-site or individual wastewater systems. In Nebraska, this statistic holds consistent with 25 percent of our state’s population being served by onsite wastewater systems on farms, acreages, suburbs and even some small communities.

Yeast Additives and Wastewater Lagoons

Additives such as yeast are marketed as a quick and easy way to improve bacterial degradation of the wastewater within a system such as a lagoon.  However, the reality is that none of the yeast additives have been proven to be effective in improving bacterial action within your lagoon.  Additionally, yeast additives have shown to have negative impacts on groundwater quality as well as potential further negative impact on surrounding environmental resources such as vegetation.  If you think the waste treatment is insufficient, consider taking the following two steps:

Water and wastewater in winter weather

In Nebraska, extreme winter temperatures can come on quickly and hang around for extended periods.  Those extended periods of cold can be hard on things, but what impact do they have on your septic system? Can they affect your well and your water system? And what can you do to limit any impact?

Extension at the University of Nebraska–Lincoln is actively involved in programming that helps homeowners, industry, and youth audiences understand onsite wastewater treatment systems for handling domestic sewage. Treatment of wastewater using onsite systems, such as septic tanks and drainfields, plays a very important role in protecting the water and environment of Nebraska and supporting economic development. As a result of Extension programming, Nebraskans benefit from improved water quality and a cleaner environment.