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This diagram shows the features, values, and threats for Guanabara Bay and its watershed, near Rio de Janeiro, Brazil.
Guanabara Bay Values and Threats
Conceptual diagram illustrating that wastewater treatment plants with biological nutrient removal contribute the least amount of nitrogen to groundwater annually per household.
Comparing septic and sewage systems
A biodigestor processes organic waste into gas and fertilizer. It is a simple system to implement with inexpensive materials and is being introduced in isolated rural communities and developing countries to get the double benefit of getting solve energy and environmental problems, and perform proper management of both human waste and animal.
Water: Biodigestor
Unsustainable development and overfishing threaten Belize's coral reefs.
Belize coral reefs in jeopardy
The reduction of impacts and threats to the coastal ecosystem of Honduras benefits both humans and coral reefs.
The current features of and threats to the…
A downward pointing yellow arrow labeled
Inputs: sewage
As land use in the Chilika Lake area changes from forest to settlements and paddy agriculture sewage, and fertilizer and pesticides runoff increases into the Lake. This extra nutrient input results in algae blooms that float and sit on the bottom.
Chilika Lake Pollution Pressure
Conceptual diagram illustrating a modern central collection and wastewater treatment plant.
Modern Wastewater Treatment
Conceptual diagram illustrating a virus tracer study demonstrating that Class V injection wells can cause contamination of surface waters within the environment due to the porous nature of the limestone substrate.
Virus tracer study
Illustration of a primary sewage treatment plant
Water: sewage treatment plant: primary
Illustration of a tertiary sewage treatment plant
Water: sewage treatment plant: tertiary
Manhole cover in Bayonne, NJ
Bayonne sewer
Conceptual diagram illustrating the methodology in analyzing the nitrogen in a water source using macroalgae as a bioindicator.
Nitrogen stable isotope methodology
Conceptual diagram illustrating the process in which wastewater is treated by sewage treatment systems versus traditional and advanced septic systems.
Wastewater treatment
Another illustration of a wastewater treatment plant, with pools, buildings and a drainage pipe
Water: sewage treatment plant 2
Illustration of a septic system with a rectangular tank and incoming and outgoing pipes
Water: septic system 1
Illustration of a cylindrical tank with pipes leaving it
Water: septic system 2
Annapolis wastewater treatment plant
Annapolis wastewater treatment plant
Annapolis wastewater treatment plant
Annapolis wastewater treatment plant
The Cambridge wastewater treatment plant, with downtown Cambridge in the background and the Choptank River Bridge on the right
The Cambridge wastewater treatment plant
The Cambridge wastewater treatment plant, with downtown Cambridge in the background and the Choptank River Bridge on the right
The Cambridge wastewater treatment plant
The Cambridge wastewater treatment plant
The Cambridge wastewater treatment plant
The setup consists of a buoy, rope, perforated plastic cup (cabled tied to the rope), a fishing sinker (also cable tied to the rope) to keep the chamber from floating to the surface and a heavy weight (bricks) at the bottom
Macroalgal Incubation Setup
Conceptual diagram of processes in Temperate coastal regions developed as part of the LOICZ project to look at Land Ocean Interactions in the Coastal Zone
Temperate Coastal Ecosystem Summary
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