Home page

Shanxi Coking

Shanxi Coking Co., Ltd. is affiliated with Shanxi Jinan Holding Group Co., Ltd. The company’s coking wastewater treatment system employs the most advanced domestic treatment process, which consists of “intensified pretreatment—primary biochemical treatment—first-stage advanced treatment—second-stage advanced treatment—RO membrane filtration.” In particular, the first-stage advanced treatment step utilizes biological sulfur bed technology, enabling the COD content in the wastewater to be reduced to below 80 milligrams per liter, thereby achieving the goal of zero discharge for coking wastewater. The reverse osmosis membrane elements replaced this time are located in both the primary RO system and the concentrated water RO system. The projects were completed in May 2024, July 2024, and December 2025, respectively. A total of 252 Haitong reverse osmosis membrane elements were used throughout the project, and the results have left the customer highly satisfied.

Case Introduction

Using unit	Water source usage	Model	Commissioning time
A Coking Co., Ltd. in Shanxi Province	Reclaimed water reuse	BW-8040-400FR	2024.5
		BW-8040-440FR
	Coking wastewater	XL-1	2025.12
Arrangement	Operating data
First-level reverse osmosis: 19:9 — 6-core (112 tubes)	The brine reverse osmosis system produces a water flow rate of 83 m³/h, with a system recovery rate of 75%. The feed water conductivity is 2270 µS/cm, while the product water conductivity is 29.6 µS/cm, resulting in a desalination rate of 99.2% for the system.
Concentrate Reverse Osmosis: 19:9 — 5-core (140 elements)
Coking water reverse osmosis: 16:7 —— 6-core (414 units)	The coking wastewater reverse osmosis system has a production capacity of 70 m³/h, with a system recovery rate of 70%. The conductivity of the feed water is... 11,100 µS/cm; product water conductivity: 150.3 µS/cm; system desalination rate: 98.6%.