HomeMy WebLinkAboutAppendix F_Waste_flowsheetPiedmont Lithium Carolinas, Inc. I Response to Additional Information Request (dated January 14, 2022)
Appendix F: Solid and Liquid Waste Flowsheets
PIEDAA'ONT
LITHIUM
Appendix F: Solid and Liquid
Waste Flowsheets
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Piedmont Lithium Carolinas, Inc. I Response to Additional Information Request (dated January 14, 2022)
Appendix F: Solid and Liquid Waste Flowsheets
F.1 Attachment 1 — Overall Site Solid Waste Flowsheet
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2,963 t/h mined
CAROLINA LITHIUM PROJECT - SOLID MASS BALANCE NOMINAL FLOW
2,707 t/h waste rock
MINE + CRUSHING
118 t/h DMSTailings
256 t/h Crushed Ore
Flotation Reagents
20 Magnafloc (neat) g/t
5 kg/h Magnafloc (neat)
350 FA-2 (100% Oleic Acid) g/t
90 kg/h FA-2 (100% Oleic Acid)
11 M I BC (100%) g/t
3 kg/h MIBC(100%)
62 Armac T/C (50/50 @ 1%w/w solution sti
16 kg/h Armac T/C (50/50 @ 1%w/w solut
on strength)
140 F220 (5% w/w solution) g/t
36 kg/h F220 (5% w/w solution)
254 NaOH (50%w/w) g/t
65 kg/h NaOH (50%w/w)
79 Na2CO3 (20%w/w) g/t
20 kg/h Na2CO3 (20%w/w)
Byproducts Reagents
162 Armac C (1% w/w) g/t 41 kg/h Armac C (1% w/w)
735 HF (49%w/w) g/t 188 kg/h HF (49%w/w)
68 Kerosene (100%) g/t 17 kg/h Kerosene (100%)
129 H2SO4 (98%) g/t 33 kg/h H2SO4(98%)
L
97.5
DMS CIRCUIT
124 t/h F
FLOTATION CIRCUIT
WASTE ROCK STOPILE
5.6 t/h CaC
Spodumene Concentr
CONVERSI
Spodumene to Market
BYPRODUCTS
59 t/h Feldspar Dried FELDSPAR 6 t/h Feldspar to
PRODUCTION
STORAGE
53 t/h Feldspar to Market
38 t/h Quartz Product
QUARTZ 4 t/h Quartz to Tailings
STORAGE
34 t/h Quartz to Market
.4 t/h Na2CO3
2,877 t/h to waste stockpile
NOTES
1. STREAM DATA SHOWS SOLID FLOW ONLY
2. THE MAJORITY OF REAGENTS IN DO NOT REPORT OUT WITH SOLIDS
3. FLOW RATES SHOWN ARE NOMINAL RATES, BASED ON 85% PLANT AVAILABILITY.
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Piedmont Lithium Carolinas, Inc. I Response to Additional Information Request (dated January 14, 2022)
Appendix F: Solid and Liquid Waste Flowsheets
F.2 Attachment 2 — Overall Site Liquid Waste
Flowsheet
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PIEDAAONT Stream and Wetlands
Water Intake
L I T H I U M (Temporary/
Water Balance Flow Chart Emergency)
115 qpm 165.6k d
Waste
ck Disposal
Freshwater Demand
I^
50 gpm Q
(72k gpd) 0 Y
I 00 CO
co Cn
Concentrator
Plant
124
I
Wastewater Effluent
Discharge
192 gpm (276k gpd)
Process
Water
Treatment
I
Waste
Water
Pump
Station
5.2 gpm
(7.6k gpd)
1
199 gpm (287k gpd) Total Effluent
Potable Water
Demand
2.5 gpm
(3.6k gpd)
m
175 gpm (252k gpd)
Fire]
1 Single Fill of
90k gal
Wastewater Effluent (option)
Sewer Water
Discharge
2.7 gpm
(4k gpd)
Fire
Conversion Plant
Single Fill
of 90k gal
Total Freshwater Demand
265 gpm (382k gpd)
Concentrator Plant + Mining
In -Pit Crushing and
Belt Dust Control 60 gpm (86.4k gpd)
Road Dust Control 30 gpm (43.2k gpd)
--------------------------------------------------------------
Total Mining 90 gpm (129.6k gpd)
f
Potable Water
Demand
2.7 gpm
(4k gpd)
Sewer Water Dis,
2 gpm (2.9k g
Municipal Demand
350 gpm (504k gpd)
e
Freshwater Discharge
avg. Discharge = 1060 gpm (1526.4k gpd)
min. Discharge = 360 gpm (518.4k gpd)
max. Discharge = 2060 gpm (2966.4k gpd)
Pit Discharge
Ponds
t -7
Pits
IFreshwater Inflow
avg. Inflow = 1300 gpm (1872k gpd)
min. Inflow = 600 gpm (864k gpd)
max. Inflow = 2300 gpm (3312k gpd)
I
L _ As Required
Potable Water Demand
5.2 gpm (7.6 gpd) + 180k gal Fire Water
Note: Difference between freshwater demand in and
wastewater out is water loss due to evaporation, water
loss to tailings, and instantaneous demand for feed
process requirements.
Mining
Personnel
Municipal Water
Supply (Potable)
[Total Required
357 gpm (514k gpd)
+ 180k gal Fire Water]
Potable Water
Demand
2 gpm (2.9k gpd)
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