Wastewater treatment cost

1# khhby116, your question is too general; it’s impossible to draw any conclusions. Wastewater can be classified into many categories. By industry, it includes domestic wastewater, metallurgical wastewater, chemical industry wastewater, textile and printing wastewater, and other types of wastewater generated by different sectors. Based on the pollutants present, it can be divided into heavy metal wastewater, organic wastewater, saline wastewater, radioactive wastewater, and so on. Different types of wastewater require different treatment methods and processes, which naturally leads to significant variations in costs. Moreover, the cost of wastewater treatment is also related to the scale of treatment; generally, the larger the scale of treatment, the lower the unit cost. I really can’t give you a definite answer.

I just need a rough range, for example, the cheapest at 10 yuan per ton and the most expensive at 200 yuan per ton.

Our company deals with high-concentration organic wastewater; the system has not yet been put into operation. The estimated cost is 3–4 yuan per ton, which is quite high.

It’s hard to even determine a range. Different treatment effects result in significantly varying treatment costs.

Domestic wastewater: 0.8; Landfill leachate: over 50; Chemical wastewater: 3.0

It’s hard to give a general price for this; there are various treatment methods, and the results of those treatments vary, so it’s somewhat easier to address that aspect. The key is not to provide them with information related to the wastewater; otherwise, how can they know what methods and equipment are needed to treat it, how it should be operated, and how the costs can be calculated?

Generally, municipal wastewater is sent to sewage treatment plants, with treatment costs being around 1.0 yuan or less. Industrial wastewater, on the other hand, requires different treatment approaches depending on the industry – such as oil refining wastewater, chemical industry wastewater, pharmaceutical wastewater, metallurgical wastewater, papermaking wastewater, etc. These types of wastewater need to undergo advanced treatment before they can be reused or discharged. For such wastewater, a dual-membrane process is used, and the treatment cost is generally between 4 and 7 yuan (including electricity costs, chemicals, labor, depreciation, etc.). The operating costs are high, and the COD level in the concentrated wastewater exceeds permissible limits, making it impossible to discharge it. I recently learned about a new water treatment technology: “electroadsorption desalination technology,” which is quite effective for wastewater treatment. I have visited several actual projects, and the owners said that the operating cost is within 1.5 yuan per ton of treated water. The equipment is durable and very suitable for wastewater reuse; it’s just not yet widely recognized. I only have a basic understanding of this technology as well. Those who are interested can visit www.est-pure.com to learn more.

It’s acceptable to pay a bit more than for fresh water; otherwise the cost would be too high.