An Automatic and Dynamic Manure Cleaning System for Fish Pond
sign an automatic and d
manure cleaning system for fish p
Fish pond cleaning is important to keep fish healthy.
Manure and moss that is not removed will clog
tail screens and raise the water level in the raceway. Laminar flow is disrupted and excessive
pressure will break walkways and overflow screens.
Suspending solids will reduce the water quality
and distribute p
athogen. Fish will shy away from feeders while avoiding the cloud of suspended
Current pond cleaning methods use a combination of “push screen,” “quiescent zone,” and/or
As shown in Figure 1, t
he push screen is made of wire cloth
covering a wooden
frame. Rubber belting across the bottom edge helps it slide on pond floor. The screen is floated up
the pond. Settled manure will slide along the bottom of the pond. Care must be taken not to re
suspend the manure.
As shown in Figure 1
, the quiescent zone is made of stand pipes with 4’’
diameter and 4’ tall and common pipes of 6’’ diameter. Various structural supports are constructed
for catwalks and tail screens. Pumping manure is shown in Figure 3.
The method of “push
screen” to clean manure in fish pond
Quiescent zone cleaning: (a) geometry, (b) manure siphon hose with head
Based on materials provided by Clear Springs Foods, Inc.
and the discuss
between Drs. Tao Xing, Ralph Budwig
and this company during their visit to the fish farms on Aug. 22 2013.
Figure 3. Pumping Manure
labor cost is high using the current cleaning methods. Clear Springs Inc. is looking for new ideas
that lead to an automatic and dynamic manure cleaning system.
The main tasks ar
e, but not limited
Identify the factors that must be considered in designi
ng the new system such as turbulent
, flow rates, pump selections
, and control system
various designs usi
in EES to evaluate various designs.
Link Engineering Equation Solver (EES) to
Microsoft Excel to create a user
interface in EXCEL.
Perform engineering economy
analysis for each
mize the designs to achieve an overall minimum cost.
If fund is available, build a
prototype to v
This project requires the students to use knowledge they learned from the following courses:
335 Engineering Fluid Mechanics,
ME 345 Heat Transfer, and
Thermal System Design.
that is provided to ME students for free will be used.