Recently, Anhui Petroleum officially put its intelligent cloud-based hazardous waste storage warehouse into operation at Lu'an Oil Depot. Replacing the traditional manual registration and storage mode with intelligent and digital management, it realizes closed-loop control covering the entire process of hazardous waste generation, storage, weighing, archiving and transfer.

Against the backdrop of accelerating digital transformation of hazardous waste management in the petroleum and petrochemical industry, such intelligent storage and collection equipment is becoming standard configuration for oil depots, refineries and other facilities. The intelligent hazardous waste storage cabinets from Shanghai DeSUN ECOTECH CO., Ltd. are mature solutions targeting the same application scenarios. They serve the temporary storage needs of hazardous wastes such as laboratory waste liquid and oil-bearing wastes, and have been adopted by multiple leading enterprises including SINOPEC, CNPC and PipeChina.

Design Basis of Hazardous Waste Storage Cabinets: A Dual-Layer Regulatory Logic of "Facility + Container"

The functions required of hazardous waste storage cabinets are determined by their dual legal status as both "storage facilities" and "containers and packaging".

First Layer: As a storage facility, the cabinet body itself serves as a storage space

According to the Standard for Pollution Control on Hazardous Waste Storage (GB 18597-2023), storage facilities shall adopt necessary measures for wind protection, sun protection, rain protection, leakage prevention, seepage prevention and corrosion protection, and hazardous wastes shall not be stored in the open air. Storage facilities shall set up necessary storage zones based on the category, quantity, form and physicochemical properties of hazardous wastes, to avoid contact and mixing of incompatible hazardous wastes. For liquid hazardous waste storage, facilities shall be equipped with liquid leakage interception devices, and the minimum volume of interception devices shall not be less than 1/10 of the volume of the largest liquid waste container in the corresponding storage area or the total storage volume of liquid waste (whichever is larger).

DeSUN ECOTECH hazardous waste storage cabinets adopt a double-layer anti-corrosion steel structure, equipped with a leakage collection system and a multi-zone independent storage design, which directly respond to the above mandatory requirements at the facility level.

Second Layer: As containers and packaging, the inner lining in direct contact with hazardous wastes is also subject to standard constraints

GB 18597-2023 stipulates that the materials and inner linings of containers and packaging shall be compatible with the hazardous wastes contained; containers and packaging shall meet corresponding requirements for seepage prevention, leakage prevention, corrosion protection and strength; when rigid containers are stacked, there shall be no obvious deformation, damage or leakage.

The waste liquid in oil depot laboratories has complex components, including various substances such as acids, alkalis and organic solvents. If the inner lining material of the storage cabinet is incompatible with the waste liquid, it may be corroded and perforated in a short period of time. The inner lining material selection of DeSUN ECOTECH hazardous waste storage cabinets must meet both requirements of waste compatibility and leakage, seepage and corrosion prevention.

Intelligent Weighing and Ledger Functions: Regulatory Basis of HJ 1259-2022

The intelligent functions of hazardous waste storage cabinets correspond to another set of regulatory systems. The Technical Guidelines for Formulation of Hazardous Waste Management Plans and Management Ledgers (HJ 1259-2022) clearly stipulates that key environmental supervision units for hazardous waste (units with an annual generation of 100 tons or more, units with self-utilization and disposal facilities, or units holding operation licenses) shall adopt technical means such as electronic weighbridges, electronic tags and electronic management ledgers to conduct information-based management of the hazardous waste storage process, ensuring complete, authentic and accurate data.

Through the linkage of IoT sensors and intelligent management platforms, DeSUN ECOTECH hazardous waste storage cabinets automatically complete weighing records, data archiving and ledger generation, helping oil depots and refining enterprises eliminate the errors and cumbersomeness of manual registration, and meet the mandatory requirements of HJ 1259-2022 for information-based management.

It is precisely in the process of benchmarking each clause of GB 18597-2023 at the product level that DeSUN ECOTECH has accumulated a great deal of front-line practical experience — which clauses are most likely to be compromised in implementation, and which design details can truly help enterprises pass inspections. These experiences in turn become the confidence for participating in standard formulation.

From "Making Products" to "Setting Standards": The Inevitable Extension of Technological Accumulation

In the field of hazardous waste, as one of the drafting units, the company participated in the formulation of the group standard Technical Requirements for Integrated Intelligent Hazardous Waste Storage Equipment (T/CAEPI 89-2024), led by the team of Professor Li Jinhui from Tsinghua University. This standard was approved and issued by the China Association of Environmental Protection Industry on September 13, 2024, and came into effect on October 13, 2024.

In addition, the company was awarded the title of National High-Tech Enterprise in 2022. In 2023, its products were selected into the Catalogue of Advanced and Applicable Technologies for Zero-Waste City Construction by the Ministry of Ecology and Environment. In 2024, it was awarded the title of "Hazardous Waste Storage Technology Center Entity" by the China Petroleum and Petrochemical Research Association, and recognized as an entity of "Practical Technologies, Equipment and Demonstration Projects for Ecological Environmental Protection" by the China Association of Environmental Protection Industry. In 2025, it was awarded the title of "Practical Equipment for Green Park Construction" by the China Petroleum and Chemical Industry Federation, and recognized as a "Specialized, Refined, Unique and Innovative (SRUI) Small and Medium-Sized Enterprise" of Shanghai in the same year.

Field Verification: Implementation Footprints in the Petroleum and Petrochemical Industry

DeSUN ECOTECH's hazardous waste storage cabinets and temporary storage warehouses have been implemented in multiple projects in the petroleum, petrochemical and energy industries:

- November 20, 2023: CNPC Kunlun Fengyuan (Shandong) Gas Co., Ltd. purchased a skid-mounted hazardous waste temporary storage warehouse for compliant temporary storage of hazardous waste at gas stations.

- July 2, 2024: A container-type hazardous waste temporary storage room was delivered and put into use for SINOPEC Hainan, serving the classified storage needs of hazardous waste at the refining base.

- December 11, 2024: The waste storage room project of Hunan Petrochemical was completed, further improving the information-based management of hazardous waste storage.

- September 15, 2026: The hazardous waste temporary storage room project of the Northwest Branch of National Petroleum and Natural Gas Pipeline Network Group Co., Ltd. was closed, providing standardized hazardous waste temporary storage equipment for stations along the northwest pipeline network.

Conclusion

From the intelligent cloud-based hazardous waste warehouse at Lu'an Oil Depot to DeSUN ECOTECH's hazardous waste storage cabinets for the petroleum and petrochemical industry, hazardous waste management is shifting from "passive response to inspections" to "compliance embedded in design". When the material, structure and sealing performance of every storage cabinet are supported by applicable regulations, temporary storage of hazardous waste is no longer a management blind spot, but a visible, controllable safety capability.