1. A fire accident occurred in a chemical enterprise in Conghua, Guangzhou, resulting in excessive COD in the section

Project background: Recently, a workshop in a daily chemical factory in Guangzhou caught fire. During the firefighting operation, the fire department mistakenly discharged waste liquid into the local river channel, resulting in serious exceedance of the river section. The highest COD pollution on the river surface reached over 1000mg/L. The downstream section of 10 kilometers belongs to the third category of national water assessment with a COD<20mg/L. The local environmental protection department has entered an emergency state in the river and invited Chimelong Technology to serve as the technical unit for water treatment and monitoring.

Emergency response plan: Adopt measures to block the source of pollution, guide the emergency treatment of sewage treatment plants, carry out emergency disposal of river pollutants, use Fink rapid detection for multi section continuous rapid detection and sampling, adjust the water purification agent dosing plan, and effectively control the expansion of environmental risks.

2. Emergency response to excessive fluoride in a river channel of a certain bureau in Shandong Province

Project background: The fluoride content in a certain river channel in Shandong Province seriously exceeds the standard, which is twice the emission limit. It is urgent to reduce the fluoride concentration below the standard.

Processing effect: Our company rushed to the scene overnight and learned that the emergency treatment required a huge amount of medication. We immediately arranged a production factory and two transportation fleets to produce and transport defluorinants to ensure a stable supply of the required medication. Assign several technicians to use Fink rapid detection products on site to monitor real-time data, ultimately ensuring that the fluoride content in the river reaches the standard and remains stable

3. Solve biochemical collapse in 4 days - emergency treatment of 200000 tons of domestic sewage plant

Project background: A 200000 square meter water plant in Dongguan, with a production process of A2/O, experienced a collapse in the biochemical system, resulting in a 75% decrease in treatment capacity and excessive ammonia nitrogen in the effluent.

Biochemical system recovery plan:

(1) Add efficient activating bacteria to accelerate the restoration of nitrification capacity in the system,

(2) Add activated carbon to promote bacterial sedimentation and prevent effective bacterial loss.

(3) Add an appropriate amount of activated sludge and replace the toxic sludge in the system.

Processing effect: After adding the microbial agent for 4 days, the biochemical system returned to normal. After 10 days of debugging, the ammonia nitrogen stabilized and met the standard, and the biochemical system resumed operation.