Sharing of technologies for the treatment, reuse of waste acid and wastewater, or compliance with discharge standards
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Yesterday I participated in a discussion on recycled water; at the invitation of the moderator, I started a thread to share our technical expertise and applications in this area. Waste acid and wastewater need to undergo treatments such as removal of suspended impurities, removal of arsenic and heavy metals, neutralization, and in some cases hardness reduction, before they can be reused or discharged. Work is pretty busy; let’s talk about each thing slowly. Let’s start with removing suspended impurities. The removal of impurities from acidic wastewater and sewage generally involves flocculation sedimentation, followed by solid-liquid separation. We use corrosion-resistant FRP material to manufacture the filters. Thanks to their special design, larger particles settle at the bottom directly, while smaller particles move upward to the packing layer. After being trapped by the packing layer, the clear water overflows, and the smaller particles form a filter cake that settles naturally once it reaches a certain thickness. The bottom gate opens at a set time to discharge sludge, while the filler is simultaneously flushed. The slurry is filtered by pressure filtration; the residue is sent for treatment, while the filtrate is sent to the next processing stage. This device is a patented product, and its advantages over traditional treatment equipment (inclined plates, inclined tubes, membrane filters, thickeners) are as follows: 1. High removal efficiency, with clear effluent; SS level ≤ 10–30 mg/L (this value depends on the influent concentration) ； 2. Low operating costs: a treatment unit with a water inflow rate of 50 m³/h requires only about 15,800 yuan per year ； 3. The filler is easy to flush; there is no need to replace the filter cloth or inclined plates for maintenance, allowing for continuous production and processing ； 4. Small footprint, high degree of automation, labor savings ； 5. Corrosion-resistant, wear-resistant, and age-resistant with a long service life; it can be used for over 12 years. There are many application cases; it is widely used in non-ferrous metal smelting, phosphate fertilizer plants, titanium dioxide plants, steel mills, and chemical companies. The picture above speaks for itself
Add another diagram of the clear liquid filtered at the upper layer
The color of the water in the picture appears to be quite good. I’m wondering what is the hourly water treatment capacity of a basic unit of this device, and what is the cost per ton of water treated?
I wonder what is the water treatment capacity per hour for a basic unit of this device, and what is the cost per ton of water?
I. The flow rate of the incoming liquid is 20–50 cubic meters per hour; if a higher flow rate is required, multiple filters can be connected in parallel. II. The cost is virtually negligible for the following reasons: 1. The liquid flowing in enters the filter body by gravity, so no pump is required; the liquid exiting does so through overflow, and thus no pump is needed either ； 2. Sludge discharge is achieved via pneumatic valves (there is a slight electricity cost; they are operated once every 2 hours for about ten seconds each, so the electricity cost is practically negligible), or manual valves can also be used ； 3. The filler is automatically flushed by the liquid level, and waste removal is carried out simultaneously; no additional backwashing chemicals are required, resulting in no extra costs ； 4. For filler replacement, 1–2 cubic meters need to be replaced every 2 years; the cost is less than 20,000 yuan. When this cost is spread over the amount of treatment fluid processed in 2 years, the operating expenses can be considered negligible.
There is an answer on floor 6: handshake
It is recommended that the poster provide information such as the users of the chemical enterprise, the source of the water to be treated (upstream processes), its capacity, the approximate investment required, and its expected lifespan, so that it can serve as a reference for everyone; this might help in finding new customers. . .
As a supplementary note for the 6th floor: the cost of coagulants in the operating costs is approximately 0.1 to 0.2 yuan per cubic meter of liquid fed in.
It looks so familiar; could it be another imitation of CN?
What material is the filler used by the poster? No pressure is needed for flushing.