Xi'an DIEN Water Treatment Customizes Oily Wastewater Treatment System for Yanchang Petroleum | Reclaimed Water Reuse
Project Overview
This project covers the oily Wastewater treatment and reuse engineering for the plant area of Yanchang Petroleum Group. Xi'an DIEN Water Treatment provides one-stop full services including solution design, equipment supply, installation & commissioning, and operation & maintenance guidance. Targeting oily production wastewater generated in petroleum exploitation and refining processes, the project adopts a customized combined process to achieve stable standard discharge, high-efficiency reuse, energy saving and cost reduction, fully meeting the safety production and environmental compliance requirements of Yanchang Petroleum.
Raw Water Quality Problems
The raw water of Yanchang Petroleum plant is production wastewater from petroleum exploitation and refining, featuring complex water quality and high treatment difficulty, with main problems as follows:
High content of petroleum substances in water, containing floating oil and emulsified oil, which easily adheres to pipe walls and causes environmental pollution;
Key indicators such as COD, ammonia nitrogen and suspended solids exceed standards, making direct discharge and reuse unavailable;
Wastewater contains refractory organics such as sulfides and phenols, leading to unstable treatment with conventional processes;
Severe water quality fluctuation and strong impact load may cause system failure and effluent over-standard;
Substandard wastewater fails to meet the requirements of reinjection, reuse and recycling, resulting in serious water resource waste.
Customer Requirements & Treatment Targets
Efficiently remove petroleum substances, suspended solids, COD and ammonia nitrogen; make effluent comply with pollutant discharge standards for petroleum refining industry and reclaimed water quality requirements;
Realize Wastewater resource reuse; part of the effluent is used for plant greening, equipment cleaning and circulating water replenishment;
The system features strong impact resistance, stable operation and high automation, adapting to continuous production conditions;
Reasonable equipment footprint, simple operation & maintenance and long service life to reduce long-term operating costs;
Meet environmental supervision requirements to ensure stable standard discharge, smooth acceptance and long-term compliant operation.
Xi'an DIEN Water Treatment | Yanchang Petroleum Oily Wastewater Treatment & Reuse
Solution
Combined with the water quality characteristics and reuse demands of Yanchang Petroleum, Xi'an DIEN Water Treatment customizes a combined treatment system of Oil Separation + Air Flotation + Biochemical Treatment + Advanced Filtration:
Oil Separation Pretreatment Unit: Efficiently separate floating oil and large particle impurities and recover oil resources;
Dissolved Air Flotation Device: Deeply remove emulsified oil and suspended solids and reduce organic load;
A/O Biochemical Treatment System: Degrade COD and ammonia nitrogen and stabilize water quality indicators;
Advanced Filtration & Disinfection Unit: Further purify water quality to ensure clear and standard effluent;
Fully Automatic Intelligent Control System: Real-time monitoring, automatic adjustment and fault alarm, realizing unattended stable operation.
The whole process features strong pertinence, high treatment efficiency and reliable operation, perfectly adapting to complex wastewater treatment in the petrochemical industry.
Treatment Effect
Petroleum substances are thoroughly removed with stable standard oil content in effluent;
COD, ammonia nitrogen and suspended solids are greatly reduced, fully meeting discharge and reuse standards;
The effluent is clear and transparent without floating oil or peculiar odor, safely available for plant reuse, greening, equipment cleaning and circulating water replenishment;
The system has strong impact load resistance and maintains stable operation under fluctuating water quality;
Realize water resource recycling, significantly reduce fresh water consumption and lower enterprise production costs.
Customer Feedback
The person in charge of Yanchang Petroleum gave official feedback: The oily Wastewater treatment system provided by Xi'an DIEN Water Treatment has completed installation and commissioning, with stable standard effluent and remarkable reuse effect. The equipment operates reliably with simple maintenance, fully satisfying the production and environmental protection requirements of the plant, and we are highly satisfied with the overall project effect.
Xi'an DIEN Water Treatment specializes in petrochemical Wastewater treatment, oily wastewater treatment, industrial wastewater reuse and zero-discharge projects, with rich project experience in oilfields, refining, coal mines and chemical industries. If your enterprise is faced with oily Wastewater, high-COD wastewater, refractory wastewater, substandard reuse, environmental acceptance and other problems, welcome to contact Xi'an DIEN Water Treatment. We provide customized solutions, high-quality equipment, one-stop delivery and lifelong operation & maintenance support, helping enterprises achieve green production, stable standard discharge and cost reduction & efficiency improvement.
