This document is made available electronically by the Minnesota Legislative Reference Library
as part of an ongoing digital archiving project. http://www.leg.state.mn.us/lrl/lrl.asp
TAILINGS BASIN WATER QUALITY BASED
ON LEVEL II WATER BUDGET USING A
CONSERVATI
BALANCE CALCULATION
"
Regional Copper-Nickel Study
Minnesota Environmental Quality Board
Author:
Da te:
Kim Lapakko
1979
objec
dev
ves
estima
s
va
ons
'concen
d
co
ba
qua.li
t4a
consideri
ons and acei
chern-;
cobal
of environme
9r o
-j
rom
discha
ons
meta.ls recovery
flotation
~I
n'lck
n i
e -j n
52
cons'i
eou
rame
ons
fate.
rd
thi n
il-lnos
~)
is ons
the
is also
s
u
!~.l' r'
':1
1
Detentll na
on
cons i der'0.ti on
the qual"j
it
nSjs
-j s nec(~ss
conditions wi
o
inc1
in
no
the final concent~a on
As an initial estima
on
pararne
11'1
COlleen
and Vi are the volume a
Cf
the
nal
concentration
are presented in Table 1.
table.
Mass inputs
In
a given chemi
inpu
it ~iven
itio
concen
these
ds
'/
I
assumed
s basin
a
x 1
rntpy
tion may
s
tion
a given
the parameter
oper'at'jon~
pit
_
SOUI~ce
be
For
i V'l
a
-input vo'}urnes and conce
ratio
The sources of the values IJsed are 9 yen oe10\",
and final concentrations are listed in Table 2
...
1
Removal of Potential Copper & Nickel Pollutants from Mine and Mill Effluents
Preliminary Study.
concen
ODS
in
on
o
ld
k
are bas
on
'in
n
OVJ"
volume and concentrati
input from the va
from a gi en
Duree are
nt
in t
I
ous sources was
Th(; methodo 1
va
r
runa
na ion
i
ous areas
ume
ilin
a given s
en
i pi
t:
nspo
urne
us
eva
assumes an
i
on
t> Y ovete
es
rna
The concentra
The v ues presen
~arious
lean ore and was
co
The maj
potenti
i
'j se
1ct'lon
.
It seems li
ve
n pit mine
open p'i
y that
pa
t due to
the a
p
are
mas
1
of chemical mass icon
rock a
'range of input is presented for
the 10\'Jer end
'ions si
le 2 ind'lca
sources.
observed cases.
S1
ons
si
in
-i ntended to be u
se
ma.
at the proposed mini
from
c
i
ic
i
Y
USl
ra
e
a1 contribution would
n
i
s
kp
t\
A
au
y
nea
of the range presented.
\
Chemical contribution from overburden piles
l
the plant' site and·the undisturbed
watershed is small and is generally negligible in comparison to the lean ore'li vIas
rock and open pit.
However, the magnitude of contribution from these arCiJS may
n d
'j
1
The
proces
ti
\/0'1
V I
necessa
'ly
purp 0 S e
0f
unimpac
cl
cc,ll
ume
up
VIa
rements
f'
II
on
u:i rernen
\'-!i:)
re
ar(:~
vo"J urne
te,~
e Itla
cal cu1at'1 0 nit
VI as
and plant si
rbed wa
that
ru
requ'i remen
If
i t ion a"1 v./a
r
mass
ilings basin icons
nput to
t mass
kpi 1 s
na
e source
s
t
open
rd t.
ana,
ra
urn
1so
i 1i
on on the
urnes
e
e
sen
nirnum
basirl.
the
permeal:d 1 i ty of
i'lings
re
increases~
the loss of water due
ess depends on the permea-
"11 'j ng
The volume of make up water required
bility of the base
s
c~ct'ion
lection
input to
d
ons imply that the chemi
The e ass
chemical content wa
in
-I remen
exceed
ass urn edthat i f run 0
from the undis
vIa
cons
n
p
und
rna
0
in Tabel
"I
u
h
ne
rna
base
'increases
p water requirement
increases.
The concen
ons for
ve S'I
ti ons a.re presen
sen
represent the const.ant mass i npu
input
thus as
vo', ulIle
lee
in
"in Table 3 "
bl e
r;
t...
The concentra t-j ons
div'i ded by a variable vol ume
econcen
tion
reases"
The first case represents the volume due to collection of all runoff from the
mining and mill'in9·si
The second case represents the volume due to minimum
f collection of
threc~
c
1
'] p'i
t
Vld
cases a
tion
"I (]
()n
1
urne
mi 11'1
It i S 0 f
note
-j lnpo
on volume exc
r
Under
e condition
i
re are additional
The volume
mass
c
~iTl
not
s
s
es 'i n
i
cons -i
cs
by mi'lling processeso
This would facilitate me
oncen
t
cal nature of the
e
studies indicated that the pH
Da
ilings discharge
f}~om
~ay
pilot
lant
otation process also tend
would also tend to reduce me
precipi
15 concen
pH in the
metals.
tionso
first order approximation
f-1onitorin~J
of tailing
ic
in the range
15 removal by hydroxi
tailings basin would tend to increase metals coneen
envi i-onmenta 1 impa
c
ncrease
the
(l
umes
ations in
0
may be greatly a
are strictly
1 ection
rn'j nl mum
cause va
n
b02n
l"U
1
t
to the envi
Via
exc
ab'l es
e or'
C
...l
es
mini
chern-j
i
G
c
at
i
i
other cases the mini
t. -j ons
1 ing.
it is necessar'Y
avoid disc
exces
coneen
r an
t
tions.
Reagen
Adsorption
us
in
metals onto
hough the concentrations pred
do indicate a potenti
basin vlate'r quali
\.
is adv·'isdble.
m
~~
-"" OJ
.--' td
7:;"
010
LJ.
e
l
o
o
::::r
o
JL
01 ",)
CD
-t)
en
0',
0
4'
C) (:)
1
OC)i
b
;:
Q
f)J
_ ....,
4800
"
o
t
OjJe)
-6
.1 x 10
'.':
7400
a ( Year: 28.57:! P
Year: 39
fUSSPIT 10-15-76
PPT
Frcrr, T·;.!:; 1e VII
ro if two numbers 1 s
B get Report ~ 1.
e1 II
06 1 (AC-FT) .:1
d. first number used
'"t. • r.:4''''.05
:2. ,. I
1"
l I
rS t A in hectares. P in inches
k. c:
--q
b
L •.
c"
o
o
C
I
"'r"
t
CJ'l
d stu
C:l
es
hI.Mo ae
'·' i.. I
i AMAX Ref. # 750058 D p.
18~
19 Ave. last 2 samp
jAssumed to be negligible
SUf11!l10
19 7,
X
0,;
i nl
"I O~d
" ,ea
Vi
-1
1(
0
0
3.3
o.
6600
160
r"
U
OJ
0
5
0.
nvo..,?....,
Cl?
29 000
9 5
55
55
83~OOO
0
J.
0
10
0
10
10
o
10
1
5
)
6
1 ~"'"t:;
ri
v
r:'le
on
c.
r...
21
1
1
L~
0.13
f
3
II
e
7
3 1
12
1
•
~2
Oc
.a
1.
,;;
O. 1B
,..,
~)
0" ~15
4
":l
"
"" e
-,
;
II
~OOO
57
110,000
2
260
260
o 25
0.23
460
n""
0,,22
420
.
,r"1;.
c
i
:
-w
Wrll2S
ons
a
.
. 9
.
o. B
in mol
5
o.
460
0$22
420
0.35
710
00 3
o.
650
,,81
o.
15
. 0
0.71
1400
a
0.66
300
o.
o 25
3$
22
802
38
r"
1
t;.))
..J'
I;;:;
'"
•
Oc
~
._~-_.~~_
... -
""l
Q
se
c..
o.
2
o
2.
I
2
o.
1
r'ij
::"0
~
O. 12
q16
9
0
1
0.62
0.63
1200
0 3
1
2.0
.8
0.36
0.33
670
o.
180
o.
5,,4
0.31
0,,32
610
.18
.0
0
2