கழிவு சுத்திகரிப்பு

50000.0 INR/Number

விலை/மேற்கோள் பெறவும்

தயாரிப்பு விவரங்கள்:

மேலும் பார்க்க கிளிக் செய்யவும்
உங்கள் தயாரிப்பைப் பகிரவும்:

மீண்டும் அழைக்க கோரிக்கை விசாரணையை அனுப்பு

கழிவு சுத்திகரிப்பு விலை மற்றும் அளவு

குறைந்தபட்ச ஆர்டர் அளவு ௧
அளவின் அலகு எண்
விலை அலகு எண்

தயாரிப்பு விளக்கம்

Wastewater from sinks, baths, washing machines, toilets and other appliances has to go somewhere. After traversing miles of sewer network, it ends up in sewage treatment plants whose job is to treat and discharge it.

Sewage treatment plants collect, treat, and discharge wastewater, providing a service essential to environmental and public health.

Without adequate treatment, sewage will leach into the environment and contaminate ecosystems. For example, sewage contains bacteria and chemicals that break down using oxygen in the water. In doing so, they use oxygen that fish and aquatic life needs to survive, so it needs treatment to preserve the ecosystem.

Returning sewage/wastewater to a specified quality for safe discharge is the most crucial role of the sewage treatment plant.

Sewage treatment plants run wastewater through multiple treatment stages. After preliminary filtration, there are three main stages of wastewater treatment (primary, secondary, and tertiary), with the third stage reserved for polishing.

Preliminary treatment

Sewage enters the plant network, pushed through various screens to remove large solids and waste, with grit removed by flow attenuation. The purpose of this stage is to filter the sewage of debris, sand, grit, and large particles.

Primary stage

The primary stage involves separating solids from liquids. The sewage is pumped into sedimentation tanks, where gravity forces solids to the bottom of the tank. The water is then released, leaving behind a sludge/slurry.

The sludge is a by-product of primary treatment and can sometimes be repurposed as a fertiliser, but it requires treatment such as de-watering to stabilise it. Incineration is the most likely destination for heavily contaminated sludge.

Secondary treatment

Secondary treatment is the biological treatment stage that breaks down organic contaminants in wastewater.

The two most frequently used processes are activated sludge (aerated ponds) and filter beds (sewage tricked over aggregate), where 'good bacteria in the sludge/aggregate break down the pathogens in the wastewater.

After secondary treatment, wastewater can sometimes be released, providing there s a low risk to human and animal life and the environment.

Tertiary treatment

Wastewater is considered clean after secondary treatment, but tertiary treatment returns it to an even higher quality for release in protected waters.

The type of tertiary treatment depends on the wastewater. For example, suppose we should release wastewater into bathing or shellfish waters. In that case, it requires disinfection, and nutrients in the water, like phosphorous, must also be removed.

Types of tertiary treatment include: