Energy consumption cost (highest proportion, about 40% -60%)

This is the core of operating costs, mainly including electricity consumption and a small amount of thermal energy consumption:

Electricity: Used for the operation of vacuum pumps, feed pumps, circulation pumps, compressors (heat pump type equipment), control systems, etc. The energy consumption of equipment with different processing capacities varies greatly. For example, a low-temperature evaporator with a processing capacity of 10m ³/d consumes approximately 50-80kWh of electricity per day, and the electricity price is calculated at 1 yuan/kWh, resulting in a daily electricity cost of 50-80 yuan.

Thermal energy: Some steam heating equipment requires a small amount of steam or additional heat transfer oil, and the cost varies according to local steam prices. Heat pump equipment basically does not require additional thermal energy input, making it more energy-efficient.

Consumable cost (approximately 10% -20%)

Mainly consumables that need to be replaced regularly during equipment operation, which belong to continuous expenses:

Filter consumables: precision filter cartridges, bag filter bags. Depending on the suspended solids content in the wastewater, they are replaced every 1-3 months, with a single cost ranging from tens to hundreds of yuan.

Pharmaceutical cost: Scale inhibitors, acid and alkali regulators, and defoamers used in the pretreatment stage will increase in dosage for high hardness and high foaming wastewater, with a daily cost of approximately 20-50 yuan.

Vacuum pump oil: Special lubricating oil for vacuum pumps, replaced every 3-6 months, with a single cost of several hundred yuan.

Labor cost (approximately 5% -10%)

The low-temperature evaporator has a high degree of automation, does not require dedicated personnel to be on duty, and has low labor costs:

Only part-time operation and maintenance personnel need to be arranged to conduct daily parameter inspections and records, participate in filter cleaning and consumables replacement every week. Calculated based on the labor cost of small and medium-sized enterprises, the daily labor cost shared among the equipment is about 10-30 yuan.

If a company entrusts third-party operation and maintenance, the cost will be slightly higher, about 30-50 yuan/day.

Operation and maintenance costs (approximately 5% -15%)

Including regular maintenance of equipment and replacement of vulnerable parts:

Replacement of vulnerable parts: Vacuum pump seals, valve seals, sensors, etc., are replaced every 1-2 years, with a single cost of several hundred to several thousand yuan, and an average annual sharing of about 5-20 yuan/day.

Equipment cleaning: In addition to online cleaning, 1-2 deep disassembly cleaning sessions are required per year. For areas with severe scaling or corrosion, the cost per session is approximately 1000-3000 yuan.

Cost of hazardous waste disposal (approximately 10% -25%)

This is a key cost item that differs from traditional wastewater treatment equipment and is directly related to the wastewater reduction rate:

Low temperature evaporators can reduce the volume of wastewater by 80% -95%, significantly reducing the amount of hazardous waste disposal outsourced for concentrated liquids. For example, treating 10m ³ of wastewater per day with a reduction rate of 90% only requires the disposal of 1m ³ of concentrated solution. Calculated based on a hazardous waste disposal fee of 2000 yuan/m ³, the daily cost is approximately 66 yuan; If an evaporator is not used and 10m ³ of raw wastewater is directly disposed of, the cost will be 10 times higher.

Additional explanation: The operating cost will also be affected by the type of wastewater, and high salt and high viscosity wastewater will increase energy consumption and chemical dosage; And resource-based recycling equipment (such as recycling heavy metals and solvents) can offset some operating costs by recycling valuable substances.