german-mongolian corporate days made in germany … · german-mongolian corporate days ... hochland...

Ulaanbaatar, October 2015

Water and waste water treatment for Mining and Food industry

-practical examples and show-

Dipl.-Chem.-Ing. Thomas H. Weißer

Envirochemie

German-Mongolian Corporate Days

“Made in Germany”


1. General Basics

2. Food industry: Biological waste water treatment

Examples in operation Maltery aerobic example Brewery anaerobic-aerobic example Dairy/Whey anaerobic example

3. Mining industry: Physical-chemical waste water treatment (Copper, Uranium, coal)

4. Practical example of flocculation and precipitation

Content


EnviroChemie – Technology for Water

Steps of Treatment Results


General basics



Biological

industrial

waste water treatment



Nature and Technology / Waste Water Treatment


Selected References

Ehrmann BIOMAR® AFB/OKB 1500 m³/d River

Hochland BIOMAR® OSB 240 m³/d River

Onken (Dr. Oetker) BIOMAR® OKB 200 m³/d River

Danone BIOMAR® OSB 3000 m³/d River

Baltika 3 x BIOMAR® ASB/OSB 7500 m³/d River

Oriflame ENVOCHEM® 300 m³/d Sewer

Stora Enso 2x SPLIT-O-MAT ® 2х24 m³/d Sewer

Otschakovo 2x BIOMAR® OSB 1900 m³/d River

SABMiller BIOMAR® ASB/OSB 7200 m³/d Sewer

Wrigley BIOMAR® 600 m³/d River

Pepsi Cola BIOMAR® 2000 m³/d River

Talwis BIOMAR® 720 m³/d River

Aquavisison/Coca Cola BIOMAR® 800 m³/d River

Glaverbel ENVOCHEM® 2х24 m³/d Sewer

Agranaobst BIOMAR® ASB/OKB 600 m³/d Sewer

INBEV Angarsk BIOMAR® ASB/OSB 7600 m³/d River

Hipp BIOMAR® OSB 200 m³/d River

Inventa Fischer BIOMAR® OSB 170 m³/d River

Kraft Foods study


Messparameter und Analytik / Measurement and Analysis

Messparameter / measured parameters Abwassermenge amount of wast water pH-Wert pH-value Temperatur temperature Analytik / Analysis CSB (Chemische Sauerstoffbedarf) / COD (chemical oxygen demand) BSB5 (Biologische Sauerstoffbedarf in 5 Tagen) / BOD (biological oxygen demand within 5 days) NO3-N, NH4-N, NO2-N (Stickstoff / Nitrogen) PO4-P (Phosphor / Phosphorous) SO4-S (Schwefel / sulphur) Spurenelemente (K, Na, Mg, Cl, Ca, Fe, Mn, Co, Cu, Al, Se, …), trace elements


Entscheidungskriterien zur Verfahrensauswahl / criteria for design of process Schmutzfracht / COD-Load

organisch anorganisch

Biologische Abwasserreinigung

Biological waste water treatment Chemisch/physikalische Abwasserreinigung

chemical-Physical WWT

Hohe CSB-/ high COD Konzentration CSB / COD > 2.000 mg/L

niedrige CSB-/ low COD Konzentration CSB/COD < 2.000 mg/L

Anaerob Aerob / anoxisch

Grenzwerte / Einleitbedingungen / Limits (Direkt- / Indirekteinleitung -discharge) Aerobic


Comparison of Anaerobic and aerobic process Aerobic Anaerobic

COD Load - + / ++

efficiency + / ++ o / +

P- and N-Elimination ++ -

Excess sludge ++ -

Nutrients demand o / + - / o

Invest cost: - small plants - big plants

o +

+ ++

Area consumption - o / +

Energy demand (aeration) -- ++

Energy win (Biogas) - ++


Anaerobic

Biological

industrial

wastewater treatment



COD balance – anaerobic degradation

COD in Input 100 %

CH4 (80 – 90 %)

COD in Output(10 %) Biomass (3 – 5 %)

● Only 3 - 5% of the COD in the feed is converted to biomass ● 80 - 90% of the COD in the feed is converted to methane


Biogasproduction

OH2COO2CH2224

CODg

L

L

g

g

g

CH

CH

CH

O

CH

n

4

4

4

2

4

347,0

72,0

25,0

1. Stoichiometric production of biogas

Molmass: CH4: 16 g mol-1; O2: 2 x 32 g mol-1

rCH4 (1013 mbar; 0°C) = 0,72 g L-1

→ Oxydation of 0,25 g CH4 needs 1g O2

→ each g COD degraded 0.347 L methane is produced


Energy yield of Anaerobic Biology

0

300

600

900

1.200

1.500

1.800

2.100

2.400

0

1.000

2.000

3.000

4.000

5.000

6.000

7.000

8.000

0 2.000 4.000 6.000 8.000 10.000 12.000

Leis

tung

[kW

ther

m.]

Dam

pf-E

rzeu

gung

[kg

/h]

CH 4

-Pro

dukt

ion

[m3 /d

]He

izöl

-Äqu

ival

ent

[kg/

d]C

O2-

Eins

paru

ng [

kg/d

]

Δ CSB [kg/d]

CH4-Produktion

Heizöl-Äquivalent

CO2-Einsparung

Leistung

Dampf-Erzeugung


Possibilities of exploitation

Biogas utilisation

Gas motor Natural gas net

steam Hot water


Advantages of the use of biogas Utilisation of biogas has the following advantages for a

company:

Cost savings due to substitution of fossil fuels

reduce CO2 footprints.

Improved image of the company by using green energy sources.

Biogas as an independent source of energy from the energy supplier

Generating energy on site


Biomar ASB


Biomar AHP


Gas recirculation good mixing of the substrate (no elaborate intake system required) Adjustable good mass transfer (H2S, oil, grease) relatively insensitive to increased Solids in the wastewater

(classification effect) Gas Possibility of external gas conditioning (H2S) separator downstream on pent-up separator simpler reactor head and drain system Biomass fine-grained active biomass Operational safety No complex installations Because virtually the circulation flow no deposits Interior maintenance free

Biomar AHP


Aerobic

Biological

industrial

Waste water treatment



Aerobic Microorganisms bacteria Yeast (fungus) rotifers paramecia……..

Tokophyra

Vorticella

Epistylis


Aerobic degradation OnHnCOnOn)OCH( 2222

Molmass: (CH2O)n: 30 g mol-1; O2: 32 g mol-1

→ Oxydation of 1 g (CH2O) needs 1,07g O2

→ each kg O2 blown into ww needs 1,6 kWh electrical power (blower)


COD in Input 100 %

CO2, Heat (50 %)

Biomass (50 %)

O2

COD Balance Aerobic degradation


Nitrogen elimination: nitrogen cycle

organic bounded

NH4+

NO3-

NO2-

N2

CO2 Light

Ammonification

Nitratation

Denitrification

Nitritation

Biological N2-Bound


Phosphatelimination: P-Precipitation PO4-PFäll = PO4-PZu – PO4-PBM – PO4-PBio-P – PO4-PAb

example: 10 mg/L = 40 mg/L – 8 mg/L – 20 mg/L – 2 mg/L

- excess phosphate must be removed from the wastewater by precipitation

- Precipitation: Transfer of dissolved ions (phosphate) within wastewater into unresolved particulate form Precipitation agent - Poly-Aluminium-Chloride (PAC) - Iron (III) Chloride

Fe3+ + PO43- → FePO4

- Separation by sedimentation, flotation or filtration


Biomar OSB


Aerobic Waste Water Treatment

BIOMAR ® OSB

Malthouse, Terbuni, Belgorod

Malthouse: Terbuni, Belgorod

• Plant Parameter:

• Project capacity: 1900 m3/d.

• Quality influent:

• COD 1900 mg/l

• BOD5 1520 mg/l

• Automation level: complete

• Area dimensions: approx. 1000 m2

• Start up: 2005

• Quality of treated waste water: Discharge into fishery waters of 1 st category


Other projects in Russia

Concentrate production

Steirerobst, Moscow

Dairy Onken

Belgorod

Dairy Danone,

Moscow

Cheese Factory

Hochland, Moscow


Anaerobic-aerobic Process

BIOMAR ®ASB-OSB

SAB-Miller, Kaluga

http://www.transmark.ru/ru/company/


Application example SAB Miller Kaluga


Biological Anaerobic Whey treatment plant

Biomar® AWR Norrmejerier, SE-Umeå

Application example Norrmejerier Schweden


Operation Biomar AWR at Norrmejerier

Parameter value unit

Input whey 200 - 300 [m3 d-1]

CODin 50.000 – 75.000 [mg L-1]

CODLoad 12.500 – 17.500 [kg d-1 ]

CODout 2.500 – 3.000 [mg L-1]

CODreduction 85 – 95 [%]

Biogasproduction 10.500 [m3 d-1]

Energie 80.000 [kWh d-1]


Biomar AWR (Anaerobic Whey Reactor)

Particularly suitable for the treatment of whey / whey permeate Anaerobic process with loop reactor Gentle sludge flow control efficient biomass retention for high gas yield (filed for patent) finely structured biomass of particularly high activity

Norrmejerier, Umeå, Schweden


Biomar AWR (Anaerobic Whey Reactor)


Some of our Biomar clients

german-mongolian corporate days made in germany … · german-mongolian corporate days ... hochland...

Documents