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 Front Cover
 Front Matter
 Introduction
 Main
 Reference
 Back Cover






Group Title: Circular Florida Cooperative Extension Service
Title: Diagnosis and treatment of iron and slime clogging problems
CITATION THUMBNAILS PAGE IMAGE ZOOMABLE
Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00094907/00001
 Material Information
Title: Diagnosis and treatment of iron and slime clogging problems
Physical Description: Book
Language: English
Creator: Zaszueta, Fedro S.
Smajstrla, A. G. ( Allen George )
Harrison, D. S
Publisher: Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: 1983
Copyright Date: 1983
 Subjects
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
General Note: "Computer series"
 Record Information
Bibliographic ID: UF00094907
Volume ID: VID00001
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: alephbibnum - 001742675
notis - AJF5393

Table of Contents
    Front Cover
        Page i
    Front Matter
        Page ii
        Page iii
    Introduction
        Page 5-1
    Main
        Page 5-2
        Page 5-3
        Page 5-4
    Reference
        Page 5-5
    Back Cover
        Page 5-6
Full Text

November 1983


Circular 585


Diagnosis and Treatment of Iron

And Slime Clogging Problems


COMPUTER SERIES


F. S. Zazueta, A. G. Smajstrla, D. S. Harrison, and H. W. Ford


Florida Cooperative Extension Service / Institute of Food and Agricultural Sciences / University of Florida / John T. Woeste, Dean





















Trade names are used liberally in this documentation. Their
mention is for illustrative purposes only and does not reflect
any preference, support or relationship by or to the authors, The
University of Florida, and The Cooperative Extension Service, in
any explicit or implicit manner.

















FLORIDA COOPERATIVE EXTENSION SERVICE
INSTITUTE OF FOOD AND AGRICULTURAL SCIENCES
Department of Agricultural Engineering
University of Florida















DIAGNOSIS AND TREATMENT OF IRON AND SLIME CLOGGING PROBLEMS


(c) IFAS, University of Florida, 1982,1983












SECTION V


DIAGNOSIS AND TREATMENT OF IRON AND SLIME CLOGGING PROBLEMS

by

F.S. Zazueta, A.G. Smajstrla, D.S. Harrison and H.W. Ford\l


INTRODUCTION


This program is run by typing HYPCHL.

Clogging of trickle irrigation systems with algae and
bacterial sludges is a common problem in Florida. Thus, chemical
water treatment is necessary in order to prevent them.

At the present time, liquid sodium hypochlorite (NaOCl) is
the only form of Clorine that has an approved EPA label for use
as a bactericide in trickle irrigation systems in Florida. This
program diagnoses and recommends an initial irrigation water
treatment with sodium hypochlorite to reduce clogging problems
based on the research done by Ford (1979 a,b,c).
The HYPCHL program is highly interactive and requires data from
a water analysis and the characteristics of the trickle irriga-
tion system. Thus, familiarity with the irrigation system is
necessary to run this program. With the exception of the water
analysis data, most other data are subjective. Thus, the rec-
omendations given by this program must be taken as a first appro-
ximation and care should be taken to monitor the system in order
to increase or decrease the NaOCl doses as necessary.


INPUT DATA

The following information must be input as data to the
program.

1) Parts per million of iron in the irrigation water.
2) pH of water.
3) Parts per million of sulfides in the irrigation water.
4) Type of filtration system.
5) Estimation of the biological characteristics of the
water to be used in irrigation.
6) General state of the irrigation system and well.

\1 Visiting Assistant Professor, Associate Professor, Professor,
Agricultural Engineering Dept., IFAS, University of Florida
Gainesville FL, and Professor, Lake Alfred AREC, IFAS, respectively.










OUTPUT


The program will produce the minimum free residual chlorine
concentration and the time that it must be maintained for each
application as well as the frequency of each application. When
the water quality is so poor that the treatment with NaOC1 will
not alleviate the clogging problems, the computer will produce an
UNSATISFACTORY message. However, a recommendation will be given
that will lessen the clogging problems if this water source is
used anyway.

SAMPLE RUN

The following CRTs show a sample execution of the program.
Notice that the machine will ask the user a set of pertinent
questions depending on the initial data from his water analysis.








INSTITUTE OF FOOD AND AGRICULTURAL SCIENCES
HYPOCHLORINATION OF TRICKLE IRRIGATION SYSTEMS


Enter parts per million of Iron: 2
Enter Ph of water: 7.3
Enter parts per million of sulfides: 1.8
Does the irrigation system include a sand filter? no
Does the system include a screen filter? yes
Is the water source well water? yes
Are any of the following conditions met:
Possible leaks in the well casing. no
Old gate valve on vacuum side of pump. no
Conventional air Pressure holding tank near pump. yes


CRT 5-1


J'






Use minimum of 0.75 ppm (Mg/L) free residual chlorine as
measured at the last emitter. Start with 2.5 ppm free
residual as measured near the pump at the first emitter.
Inject for 40 minutes minimum each 6 to 8 hours of
cumulative irrigation time. Watch carefully for sulfur
slime formation in the area of the last emitter in the system.


CRT 5-2


5 -4


/


/


J'


- -


I














REFERENCES


Ford H.W.
1979 a



Ford H.W.
1979 b



Ford H.W.
1979 c


A key for determining the use of sodium hypochlorite to
inhibit iron and slime clogging of low pressure irriga-
tion systems in Florida. Lake Alfred Research Report
CS79-3, 5/17/79 HWF 100

The use of chlorine in low pressure systems where
bacterial slimes are a problem. Fruit Crops Mimeo FC79-5
University of Florida, IFAS.


Using
dual.
IFAS.


a DPD test kit for measuring free chlorine resi-
Fruit Crops Mimeo FC79-4. University of Florida,


















































































COOPERATIVE EXTENSION SERVICE, UNIVERSITY OF FLORIDA, INSTITUTE OF FOOD AND AGRICULTURAL
SCIENCES, K. R. Tefertller, director, In cooperation with the United States Department of Agriculture, publishes this Infor-
mation to further the purpose of the May 8 and June 30, 1914 Acts of Congress; and Is authorized to provide research, educa-
tional Information and other services only to Individuals and Institutions that function without regard to race, color, sex or
national origin. Single copies of Extension publications (excluding 4-H and Youth publications) are available free to Florida
residents from County Extension Offices. Information on bulk rates or copies for out-of-state purchasers Is available from
C. M. Hinton, Publications Distribution Center, IFAS Building 664, University of Florida, Gainesvllle, Florida 32611. Before publicizing thl
publication, editors should contact this address to determine availability.




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