Case details

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Power lithium battery industry —— Shaanxi Hongma Technology

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Shaanxi Hongma Technology Co., Ltd. (general contracting project of three wastes treatment and industrial wastewater zero discharge)

Company name

Shaanxi Hongma Technology Co., Ltd.

Unit address

North of Daicun Road, Hancheng City, Weinan City

Project scale

1000 tons/day industrial wastewater zero discharge system, 25000m3/h waste gas treatment system, 1000 tons/day reclaimed water reuse system

Industry

Sanyuan Power Lithium Battery Industry

Sign a contract

2018.12

Project Acceptance

2019.10

Project nature

New

Contracting

EPC general contractor

project name

1000t / day comprehensive wastewater treatment zero discharge project
(Containing heavy metals, high ammonia nitrogen, high salt)

Process flow

Reclaimed water reuse + BUCT-DFAT ammonium water recycling + precision weight removal + MVR evaporation + others

Design Parameters

(1) Design water intake index

Project	Wash water	Mother liquor	Other	Exhaust gas	Unit
Temperature	30-50	30-50	Normal temperature	/	℃
pH	11-13	11-13	6-9	/	Dimensionless
COD	/	/	100-350	/	mg/L
TDS	/	/	1000-4000	/	mg/L
Total hardness	≤3100	/	600-3000	/	mg/L
Chloride	≤2500	/	350	/	mg/L
NH4-N	100-1501	8000-10000	/	/	mg/L
NiCoMn	20	150-160	/	/	mg/L
Sodium sulfate	150000	10000	/	/	mg/L
Ammonia-containing exhaust gas concentration	/	/	/	2000	mg/m³
Throughput	20	30	40	25000	m³/h

(2) Design export indicators (including zero discharge of industrial wastewater)

Project	Index	Unit	Note
Conductivity of recycled water	≤0.2	μm/cm	Water production 40m³/h
Recovered ammonia concentration	≥15	%	Amount of ammonia recovered 2t/h
Ammonia nitrogen after deammonia	≤15	mg/L
Weight removal water	≤1	mg/L	Nickel, cobalt, manganese
Sodium sulfate (yuanming powder)	≥99	%	GB/T6009-2014 First class
Heavy metal sludge	≈15	kg/h	Reuse for production
Exhaust	≤10	mg/m³	Emission height: 28 meters