PROPOSAL FOR

ENVIRONMENT POLLUTON ENGINEERING

TREATMENT DISPOSER

- CONTENTS -

1. WASTE WATER ENGINEERING

                       : CONLLECTION, TREATMENT, DISPOSAR

     1-1. PHYSICAL CHEMISTRY PRECIPITATION

     1-2. ACTIVATED-SLUDGE TREATMENT

    1-3. PHYSICAL CHEMISTRY PRECIPITATION +

                                                      ACTIVATED-SLUDGE TREATMENT

2. AIR POLLUTION

                       : CONLLECTION, TREATMENT, DISPOSAR

     2-1. PARTICULATE MATTER

     2-2. AIR POLLUTION METHOD OF CONTROL PROCESS

1. WASTEWATER ( INDUSTRIAL PROCESS CONTROL SUMMARY)

     1-1. PHYSICAL CHEMISTRY PRICIPITATION

          1-1-1. APPLICATION CONDITION

               LOW (SS, COD)

                                                                         (UNIT : mg/liter)

 

/ SECTION CONTAMINANTS	HIGH	AVERAGE	APPLICATION CONDITION
Q (m3/D)	300	150	50 - 500
PH	5 - 10	6 - 9	4 - 11
COD	300	200	100 - 300
SS	300	200	100 - 300
N-H	30	20	5 - 40

          1-1-2. APPLICATION INDUSTRIAL

                     - Nonferrous metallurgy

                     - Petroleume refineries

                     - Portland cement

                     - Coke manufacture

                     - Etc.

          1-1-3. TREATMENT EFFICIENCY

                                                                           (UNIT : mg/liter)

/CONTAMINANTS SECTION	PH	COD	SS	N-H
BEFOR TREATMENT	5 - 10	300	300	30
AFTER TREATMENT	7	60	60	3
EFFICIENCY(%)	100	80	80	90

          1-1-4. WASTE WATER TREATMENT PROCESS

     1-2. ACTIVATED - SLUDGE TREATMENT(AEROBIC SUSPENDED - GROWTH)

          1-2-1. APPLICATION CONDITION

               LOW ( SS, COD, BOD )

                                                             (UNIT : mg/liter)

/SECTION CONTAMINANTS	HIGH	AVERAGE	APPLICATION CONDITION
Q (m3/D)	1,000	750	500 - 1,000
PH	5 - 9	7	4 - 10
BOD	500	375	250 - 500
COD	400	350	300 - 400
SS	250	125	100 - 250

               1-2-2. APPLICATION INDUSTRIAL

                          - Foods

                          - Fibers (Dyeing)

                          - Papers

                          - Etc.

               1-2-3. TREATMENT EFFICIENCY

                                                              (UNIT : mg/liter)

/CONTAMINANTS SECTION	PH	BOD	COD	SS
BEFOR TREATMENT	5 - 9	500	400	250
AFTER TREATMENT	7	50	40	40
EFFICIENCY(%)	100	90	90	85

1-3. PHYSICAL CHEMISTRY PRECIPITATION + ACTIVATED-SLUDGE TREAMENT

                                                                 (AEROBIC SUSPENDED-GROWTH)

               1-3-1. APPLICATION CONDITION

                                             LOW(SS, COD,BOD)

                                                                    (UNIT : mg/liter)

SECTION	HIGH	AVERAGE	APPLICATION CONDITION
CONTAMINANTS
Q (m3/D)	2,500	1,500	2,000 - 3,000
PH	5 - 8	6 - 7	5 - 8
BOD	1,500	1,000	500 - 1,500
COD	1,000	650	300 - 1,000
SS	750	500	300 - 750

               1-3-2. APPLICATION INDUSTRIAL

                          * Foods

                          * Fibers (Dyeing)

                          * Papers

                          * Etc.

               1-3-3. TREATMENT EFFICIENCY

                                                                 (UNIT : mg/liter)

CONTAMINANTS	PH	BOD	COD	SS
SECTION
BEFOR TREATMENT	5 - 8	1,500	1,000	750
AFTER TREATMENT	7	30	30	40
EFFICIENCY(%)	100	98	97	95

2. AIR POLLUTION

    2-1. INTROLDUCTION

            2-1-1. Particulate Matter

                     * Particulate Matter : Any material, except uncombined water, tha tin the

                        solid or liquid state in the atmosphere or gas stream at standard stream

                        at standard condition

                     * Aerosol : A dispersion of microscopic solid or liquid particles in gassous media

                     * Dust : Solid partic les large than colloidal size capable of temporary

                                 suspension in air

                     * Fly ash : Fineiy divided particies of ash entrained in flue gas, particles

                                     may contain unburned fuel

                     * Fog : Visible aerosol

                     * Fume : Particles formed by condensation, sublemation, or chemical reaction,

                                  Predominantly smaller than 1um (tobacco smoke)

                     * Mist : Dispersion of small liquid droplets of sufficient size to fall the air

                     * Smoke : Small gasborne particles resulting from combustion

                     * Soot : An agglomeration of carbon particles

            2-1-2. Gases and Vapors

                     * SOx ( Suifur Oxides ) : SO₂, SO₃, G₂, SO₄

                     * H₂S ( Hydrogen Sulfide )

                     * CS₂ ( Carbon Disulfide )

                     * NOx(Nitrogen Oxides) : NO, NO₂, NO₃, N₂O , N₂O₃, ets.

                     * F Compound : caF₂, Na₃AlF₆, HF

                     * Cl Compound : Cl₂, HCl                    * CO ( Carbon Monoxide )

                     * CO₂ ( Carbon Dixide )                       * HC ( Hydro Carbon )

                     * Oxidant : O₃, PAN ( Peroxy Acetyl Nitrate), PBzN (Peroxy Bonzoyl Nitrate)

                                      PPN, PBN

                     * HCHO (Formaldehyde)

                     * Benzen (C₆H₆)                  * NH₃               * Br

    2-2. AIR POLLUTION METHOD OF CONTROL PROCESS

            2-2-1. Particulate Matter

Particulate Matter ==> Cyclone, Bag houses, Electro-static preciptator, Wet collectors ==> Clean Air

            2-2-2. Gases and Vapors

Gases and Vapors ==> Wet collectors ==> Clean Air

                                  Venturi scrubber

                                  Cyclone scrubber

                                  Jet scrubber

                                  Paked tower

                                  Pray tower

            2-2-3. INDUSTRIAL PROCESS AND CONTROL SUMMARY

 

INDUSTRY OR PROCESS	SOURCE OF EMISSIONS	PARTICULATE MATTER	METHOD OF CONTROL
Iron and stssl mills	Blast furnaces, steel-making furnaces, sintering machines	Iron oxide, dust, smoke	Cyclones, bag hoses, electrostatic Precipitator, wat collectors
Gray iron foundries	Cupolas, shake-out systems, core making	Iron oxide, smoke, oil dust, metal fumes	Scrubbers, dry centrifuge collectors
Nonferrous refineries	Smelters and furnaces	Smoke, metal fumes, oil, grease	Electrostatic precipitators, fabric filters
Petroleum metallurgy	Cataiyst regenerators, sludge incinerators	Catalyst dust, ash, from sludge	Cyclones, electrostatic precipitators, scrubbers, bag houses
Portland cement	Kilns, driers, material-handling systems	Alkali and process dusts	Fabric filters, ES precipitators, mechanical collectors
Kragt paper mills	Recovery furnaces, lime kilns, smelt tanks	Chemical dusts	Electrostatic precipitators, venturi scrubbers
Acid manufacture -   Phosphoric, sulfuric	Thermal processes, rock acidulating, grinding	Acid mist, dust	Electrostatic precipitators, venturi scrubbers
Coke manufacture	Oven operation, quenching materials handling	Coal and coke dust, coal tars	Meticulous design, operation and maintenannce
Glass and fiberglass	Furnaces, forming and curing, handling	Acid mist, alkaline oxides dust, aerosols	Fabric filters, after-burners