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High Ammonia-Nitrogen Wastewater Treatment

Chemical and pharmaceutical industry-Anhui Xuancheng Yabang Chemical

Case details

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1000

Chemical and pharmaceutical industry-Anhui Xuancheng Yabang Chemical

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Number of views:

1000

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Jiangsu Jinrun Environmental Production Engineering Co., Ltd.-Introduction of typical engineering cases-Chemical

Xuancheng Yabang Chemical Co., Ltd. (High-efficiency energy-saving stripping, ammonia removal and ammonia recovery technology)

Company name

Xuancheng Yabang Chemical Co., Ltd.

Unit address

70 Xuancheng Industrial Road, Anhui Province

Project scale

1200t/day

Industry

Chemical industry

Sign a contract

2016.12

Project Acceptance

2017.6

Project nature

New

Contracting

EPC general contractor

project name

1200 tons/day high ammonia-nitrogen wastewater treatment project

Process flow

Pretreatment + BUCT-DFAT ammonium water recycling

Design Parameters

(1) Design water intake index

Project	Index	Unit	Water volume
Temperature	Normal temperature	℃	1200t/d
pH	≥11.5	Dimensionless
COD	≤6000	mg/L
Calcium ion	≤3100	mg/L
Chloride	≤2500	mg/L
NH₄-N	7000-8000	mg/L

(2) Design the water index

Project	Index	Unit	Water volume
pH	6-9	Dimensionless
NH₄-N	≤15	mg/L
Calcium ion	≤50	mg/L

(3) Design exhaust emission index

Standard	Project	Index	Unit
GB14554-93	NH₃	≤4.9	kg/h
Notes: The Emission Standards for Odor Pollutants is executed, and the design height of the discharge chimney is 15m; organized discharge.

(4) Operational flexibility

Operation process	Operating time	Production shift	Operational flexibility
Continuous operation	8000 hours / year	Three shifts in four shifts	80-110%

Process flow

Device parameters

(5) Core process equipment parameters

Number	Name	Specification	Material	Quantity
1	Plate preheater	180m2	316L	1 station
2	BUCT-DFAT tower	φ2300×23000mm	Q235/2205/316L	1 set
3	Ammonia condenser	320㎡	304	1 set
4	Gas-liquid separator	φ1800×2500mm	304	1 set
5	Tail gas purification tower	φ1200/1000/400×15000mm	Q235/304	1 set
6	Ammonium water cooler	20㎡	304	1 station

Note: The above is the main core equipment, and the remaining facilities are not listed yet.

Economic index

(6) Economic and technical indicators of engineering

Number	Name	Unit	Value
1	Area	m²	≈300(Including pretreatment)
2	Installed power	kw·h	/
3	Operating power	kw·h	≈150(Including pretreatment)
4	Water capacity	m³/h	50
5	Pollutant emission reduction (NH4-N)	kg/d	1800
6	Water inlet index (NH4-N)	mg/L	7500
7	Water output index (NH4-N)	mg/L	10
8	Steam consumption	kg/t	101
9	Recovered ammonia concentration	%	20
10	Recovery of ammonia water production	kg/h	2206

Case real shot display

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