Typical performance of zero discharge of wastewater

Shandong Zhangqiu Blower Co., Ltd

After sales service and quality assurance commitment

Shandong Zhangqiu Blower Co., Ltd. has always attached great importance to product quality. In November 1996, it officially passed the GB/T19001-IS09001 quality certification and has consistently implemented it. At the same time, Shandong Zhangqiu Blower Co., Ltd. has always regarded after-sales service as a crucial task, and the idea of "meeting the urgent needs of users and thinking what users think" has long been integrated into the conscious actions of all employees of the company, and has made a solemn commitment to society

1. Shandong Zhanggu has 54 sales offices nationwide, equipped with dedicated maintenance personnel to solve quality problems that customers encounter during use. Company personnel can arrive at the scene within 24 hours;

2. For customers who use Zhanggu products, the company promises to arrange technical or maintenance personnel to guide installation on site according to customer requirements after equipment delivery. After installation, the company's on-site personnel will be responsible for guiding and debugging;

3. Zhanggu products implement the "three guarantees" during the warranty period, including repair, replacement, and return according to different situations;

4. For products that have exceeded the warranty period, we guarantee to provide lifelong repair parts and provide repair services according to customer requirements.

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The high salinity water treatment system project developed by Shandong Zhanggu for a certain carbon black limited liability company is a representative project of zero wastewater discharge. The project utilizes the process of "pretreatment+membrane concentration+salt extraction" to reduce the influent COD from 60mg/l to 30mg/l and ammonia nitrogen to 5 mg/l.

The overall recovery rate of the entire system is over 84%, and the purity of the separated sodium chloride is greater than 97%, and the purity of sodium sulfate is greater than 92%, which respectively meet the industrial dry salt secondary standard in "Industrial Salt" and the Class III qualified product standard in "Industrial Anhydrous Sodium Sulfate".