Recently, a chemical enterprise in Shandong Province has introduced an advanced practice of using cleaning filters to successfully treat ammonium nitrate wastewater, injecting fresh vitality into the field of chemical industrial wastewater treatment.
The wastewater treatment task for this enterprise posed significant challenges, as the pH of ammonium nitrate wastewater is extremely low, with a moderate concentration, requiring filtration of tiny particles below 5 microns. To address this requirement, the company introduced cleaning filters, which not only efficiently filter tiny particles but also feature periodic backwashing to maintain filter performance.
At the forefront of the treatment system, the company adopted membrane filters to effectively filter particles larger than 10 microns, providing a cleaner working environment for the subsequent cleaning filters.
The designed flow rate for the entire wastewater treatment system is as high as 25 cubic meters per hour, presenting a significant challenge for the cleaning filters. This not only demonstrates the applicability of precision filter technology but also provides a sustainable and environmentally friendly solution for the company's production.
To maintain the per formance of the precision filter, Mr. Liu implemented backwashing operations using ammonia water for regular cleaning. This operation ensures the long-term effective operation of the filter and enhances the system's maintainability.
Notably, the residues after filtration are soluble in approximately 5% ammonia water. Mr. Liu cleverly leverages this characteristic, planning further processing of these dissolved residues to minimize the environmental impact of waste.
The successful implementation of this wastewater treatment project sets a precedent for the application of precision filter technology in the chemical industry. Mr. Liu's innovation and environmental consciousness serve as a commendable example for the industry.
