Continuous wastewater treatment is necessary for applications used in the manufacturing of concrete. Wastewater treatment is required not only to comply with legal requirements, but also because too much waste can harm the environment, hurt business profitability, and slow down operations.
Wastewater treatment for applications in concrete production
You must thus treat your wastewater if you want to maintain both excellent water quality and affordable prices. Although, it is expensive and ineffective, you could choose to pay an outside business to transport and treat the effluent. Additionally, it restricts your ability to recycle water.
It is preferable to filter the water locally in order to treat it. Several advantages may result from this, including:
1- significant reductions in costs and efficiency
2- advances in long-term sustainability
Wastewater generated from concrete production
Numerous gallons of water are required each day to mix concrete and clean up equipment, due to the increasing use of ready-mixed applications and concrete. 150–300 gallons of water are used to clean the interior of a single concrete truck's drum, which equates to 3,000–5,000 gallons per day for a single ready-mix facility.
The problem is that the pH of the processed and runoff wastewater, from the manufacturing of concrete, is too high to allow either reuse or release. Since, the pH can readily go above 12, it is categorised as potentially dangerous. The wastewater contains numerous chemicals and harmful metals that further exacerbate the toxicity of the water, which is also laden with sand, stone, and other debris that needs to be removed.
How to handle concrete wastewater?
1: Restoring the pH of the water to normal levels and removing aggregate are the main objectives, of treating concrete wastewater. You might choose to use additional wastewater treatment techniques, such as employing coagulants, flocculants, or corrosion inhibitors, depending on the specific application.
2: Lowering the water's basic pH to a level around 7 or 8 is necessary to return the pH to normal. You can achieve this by removing the alkalinity of the water with pH adjusters. In addition, you're forcing dissolved aggregate to separate out, which makes filtering aggregate easier.
3: Mechanical filtering techniques are employed to get rid of any suspended solids and aggregate, when your water has the proper pH. The filter press is the most effective mechanical filtration device for wastewater from concrete, while there are other varieties as well.
4: The main piece of machinery for separating liquids and solids is the filter press. Filter presses use pressure filtration to separate liquids and solids, with each press built around the volume and type of slurry that needs to be treated.
Role of Filter Press
With this system, you can dispose of waste quickly and easily while recovering up to 90% of your water. The Filter Press offers improved concrete wastewater treatment using unique technology, by doing the following:
- Real Washing Automatically
For both plate and cloth designs, filter presses can be ordered with an automatic washing system. This system consists of a single valve, a single piping system on the filter press's mud head side, and discharging valves on each plate.
- Cleaning Mud Cakes
When using special mud cakes and aggregate, it can be necessary to wash the mud cakes in clean water, to bring the level of chemicals in the sludge below a predetermined level. Prior to discharge, clean water is pumped into the press's chambers.
- Membrane compression
When your cakes must have a very low amount of residual moisture, filter presses can be fitted with membrane plates. Pumping water into these particular plates causes them to expand, and crush the cake to reduce moisture in these installations.
The remaining liquid mud in the diffusion conduit that passes through the plates is removed, by blow systems. After the filtration cycle is complete but before the cake is discharged, this is done.
In order to remove any remaining liquid muck, the filter press may be fitted with a compressed air system that pumps air straight from the movable plate. This blown mud is then either directly thrown into the wastewater pit, or discharged once again into the mud homogenizer tank.
- Cake dryer
You can install cake dryer devices to inject air into the filter press to reduce the cakes' remaining moisture. The cakes are dried by the air, which is subsequently expelled through the press's drainage system.
Systems with drop trays stop water from dripping onto the mud cakes that have already been released. This operates automatically under the PLC's supervision, and is moved by a special motor and gearbox arrangement.
Drip trays are only placed beneath the filter press during the filtration cycle; once the filter press opens to release the cakes, they are moved away.
Benefits of wastewater treatment systems for concrete production facilities
In order to address all of your wastewater issues, Netsol Water Solutions, a dependable partner to the concrete manufacturing business, combines chemical proficiency with mechanical filtering competence.
We'll set you up with the appropriate filter press after bringing your water's pH back to ideal levels, with our industrial line of pH adjusters. Our professionals make sure to streamline your wastewater treatment process, so that it interferes with your workflow as little as possible.
Netsol Water is the ideal partner for the fundamentals of concrete wastewater treatment, because of its extensive experience in water treatment for concrete wastewater treatment plants. We are more than just a manufacturer; our team of professionals has excelled in the field and is ready to assist you at every stage.
Manufacturer of Industrial wastewater treatment facilities
Netsol Water provides a wide range of specialised services, such as design, installation, and commissioning of the industrial wastewater treatment plants, including wastewater treatment plants for the concrete production industries, with the pretreatment processes. Our technical team works with your team to help you meet quality requirements, and get the best results.