★Scope of application

This process is suitable for the treatment of acidic and alkaline, arsenic-containing, heavy metal-containing and other wastewaters generated in the production of the electronics industry and the LED chip industry.

★Main technical parameters

LED wastewater has complex components, including fluorine-containing wastewater, phosphating wastewater, acidic wastewater and comprehensive drinking water. Therefore, it is necessary to classify and pre-treat it before entering the comprehensive biochemical pool for deep treatment.
The standard that this process can achieve is the first-level standard of the "Comprehensive Sewage Discharge Standard" (GB8978-1996), namely: COD≤80mg/L Fluoride≤10mg/L SS≤70mg/L Total arsenic≤0.5mg/L PH=6~9

★Technical features

Acidic and alkaline wastewater discharge: mainly includes process acidic and alkaline wastewater, waste gas washing tower wastewater, and pure water station acidic and alkaline regeneration wastewater, which are treated by chemical neutralization.
Arsenic-containing wastewater: mainly comes from back thinning and dicing/splitting, and is treated by chemical precipitation.
General wastewater: The discharge method is continuous discharge, mainly refers to the RO concentrated wastewater of the pure water station. The main pollutants are inorganic salts, which are integrated into the acid and alkali wastewater for comprehensive treatment.
Fluoride-containing wastewater: The main cleaning wastewater contains HF, which is removed by calcium salt coagulation and precipitation.

★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.