Quality appraisal of concentrated wastewater treatment projects

concentrated wastewater treatment project refers to a series of technologies and processes designed to treat and purify wastewater containing high concentrations of pollutants. This type of wastewater usually originates from industrial production processes, such as chemical manufacturing, pharmaceuticals, papermaking, textiles, food processing and other industries. It is characterized by containing high concentrations of organic matter, heavy metals, suspended solids, grease, salt and other pollutants.
concentrated wastewater treatment project is of great significance to protecting the environment, saving water resources and promoting sustainable industrial development. With the increasingly stringent environmental regulations and the advancement of treatment technology, efficient and low-cost wastewater treatment technology is constantly being developed and improved.
Zhongke Testing and Appraisal Institute can provide quality appraisal services for concentrated wastewater treatment projects and make accurate appraisals in terms of product design analysis, load analysis and product quality analysis.

1. Classification according to the nature of pollutants: usually divided into organic wastewater, inorganic wastewater, heavy metal wastewater, radioactive wastewater, thermally contaminated wastewater, etc.
2. Classification according to the industrial sectors that produce wastewater: usually divided into metallurgical industry wastewater, chemical industry wastewater, coal industry wastewater, petroleum industry wastewater, textile industry wastewater, light industry wastewater and food industry wastewater, etc.

YB/T 6116-2023 Technical specifications for cold rolling wastewater regeneration and reuse
HG/T 6237-2023 Technical specifications for organic nitrogen industrial wastewater treatment and reuse
HG/T 6236-2023 Technical specifications for advanced treatment and reuse of industrial wastewater Adsorption method
DL/T 2643-2023 Performance Test Guidelines for Zero Discharge System of Terminal Wastewater in Thermal Power Plants
HJ 1279-2023 Technical Specifications for Titanium Dioxide Industrial Wastewater Treatment Engineering
HJ 1278-2023 Technical Specifications for Ceramic Industry Wastewater Treatment Engineering
HJ 1277-2023 Technical Specifications for Nitrogen Fertilizer Industrial Wastewater Treatment Engineering
HG/T 6117-2022 Determination of copper, nickel, lead, zinc and cadmium in high-salt wastewater by inductively coupled plasma emission spectrometry

A painting factory of the plaintiff signed a "Construction Contract for Concentrated Wastewater Treatment Project" with an environmental engineering company of the defendant, and the defendant undertook the plaintiff's concentrated wastewater treatment project. After the defendant completed the installation of the equipment, the plaintiff believed that due to equipment problems, repeated debugging could not achieve the results achieved by the previous design plan and failed to pass acceptance. The two companies filed disputes over this matter before the local court.
Our company was entrusted by the court to evaluate whether the concentrated wastewater treatment equipment involved in this case meets the technical requirements of the contract.
identification and analysis results:
The quality analysis expert group discussed and comprehensively technical analyzed the relevant information, on-site investigation and inspection conditions, and inspection and testing data of the "concentrated wastewater treatment equipment" involved in the case, and made the following quality analysis opinions:
The three-effect evaporation system in the concentrated wastewater treatment equipment involved in the case can achieve zero emissions, but no evaporation crystallization was seen. Since the concentrated water index entering the three-effect evaporator does not meet the designed raw water quality parameter index, and the evaporation and crystallization effect depends to a certain extent on the concentrated water index entering the three-effect evaporator, the length of the continuous working time of the three-effect evaporator, the on-site operator's operating specifications and processes for the equipment, etc., therefore, the absence of crystallization effect in the three-effect evaporation system during the identification process cannot be considered to be a problem with the three-effect evaporation system.