Chemical wastewater refers to wastewater produced in the process of producing products in chemical plants, such as oily wastewater from the production of ethylene, polyethylene, rubber, polyester, methanol, ethylene glycol, oil filling areas, air separation and air compression stations, etc. After biochemical treatment, it can generally meet the national secondary emission standards. Due to the shortage of water resources, water that meets the emission standards needs to be further treated in depth to meet the requirements of industrial water replenishment and reused.

★ Optimized combined process for reuse of chemical wastewater in deep treatment

(1) Pretreatment + UF + RO/NF Process (1) Pre+ UF + RO/NF Process
(2) MBR + UF/RO/NF Process (2) MBR + UF/RO/NF Process

★ Advantages of the process system

Advantages of the ultrafiltration system: hollow fiber membrane made of polymer materials, resistant to pressure, pollution, and long service life
Small footprint, high degree of automation,
Strong separation ability, good effluent quality
Ensure the normal operation of the subsequent RO/NF system
Advantages of the RO/NF membrane treatment system: The RO system uses anti-pollution reverse osmosis membrane, long service life, effective interception of salt, organic matter, and difficult-to-degrade compounds
Effluent water quality is suitable for all production processes
High degree of automation, low operating cost
Membrane-bioreactor process (MBR process) is a new wastewater treatment technology that organically combines membrane separation technology with biotechnology. It uses membrane separation equipment to intercept the activated sludge and macromolecular organic matter in the biochemical reaction, separate the clean water, realize the simultaneous separation of biochemical reaction and clean water, and save the secondary sedimentation tank. The compact and simple unit structure of MBR is particularly suitable for treating printing and dyeing wastewater with complex components and high pollutant concentration.

★ Advantages of MBR process:

High treatment efficiency, good effluent quality, less sludge
Short hydraulic retention time, small footprint
Easy to clean, easy to replace, stable operation, low operating cost
Strong impact resistance, high COD and color removal efficiency
Application areas: high-concentration chemical wastewater, chlor-alkali industry wastewater, pesticide wastewater, chemical parks and sewage treatment plants, phosphorus-containing wastewater treatment, formaldehyde-containing wastewater treatment

★Company Introduction

Yancheng Hongcheng Chaoyu Environmental Protection Co., Ltd. is a national high-tech enterprise specializing in the research and development, production, sales, installation, commissioning and service of environmental protection and energy-saving equipment such as atmospheric environment treatment, waste gas treatment and sewage treatment. It is a well-known domestic manufacturer, system integrator and general contractor of dust removal, desulfurization and denitrification, ultra-low emission, waste gas treatment and sewage treatment equipment. The various types of dust removal equipment, desulfurization and denitrification equipment, sewage treatment and other environmental protection and energy-saving equipment produced by the company are advanced in technology and reliable in quality. They are widely used in thermal power, coking, garbage power generation, chemical industry, papermaking, steel, metallurgy, carbon, glass, cement building materials and other industries. The products are sold to more than 20 provinces and cities across the country and have been widely praised by customers.

★Factory Appearance

★FAQ

Q. What are the common sewage treatment processes?
A. Common sewage treatment processes include activated sludge method (such as A²/O, oxidation ditch, SBR), biofilm method (such as biofilter, biorotor), membrane bioreactor (MBR), etc. These processes mainly use physical, biological and chemical means to remove organic matter, suspended solids, nitrogen and phosphorus and other pollutants in sewage to achieve standard discharge or water resource reuse.

Q. How is the sludge generated during sewage treatment handled?
A. The sludge generated during sewage treatment needs to be concentrated, dehydrated, stabilized (such as anaerobic digestion) and other treatments to reduce the volume and reduce pollution. The treated sludge can be used as a resource, such as fertilizer, incinerated for power generation, or landfilled. Reasonable disposal of sludge is an important part of ensuring that the entire sewage treatment process meets environmental standards.

Q. Does the sewage treatment plant have a bad smell? How to control the odor pollution?
A. Sewage treatment plants may produce bad smells at water inlets, grit chambers, sludge treatment areas and other places. In order to control the odor pollution, deodorization measures such as sealing facilities, negative pressure collection, chemical washing, biological filters or activated carbon adsorption are usually adopted, and the plant area is reasonably laid out and green belts are set up to reduce the impact on the surrounding environment.