Producing safe drinking water, protecting public health and preserving natural resources are what motivate our employees and foster our capacity for innovation. In India, we are working closely with local authorities to ensure the citizens receive clean drinking water.
In 1992, when the water treatment technologies had not seen much advancement in India, one of Delhi Jal Board’s water treatment plants in Okhla was facing serious ammonia issues. SUEZ offered a solution which was a combination of biological nitrification and ozone treatment to treat contaminated potable water before supplying it to the network, in order to improve its odour, taste, colour and the bacteriological characteristics.
By protecting natural resources, we are guaranteeing the quality of our environment and our resources in the future. Cities and industry are becoming increasingly concerned about reducing their activity's environmental impact. We're helping them to improve the quality of their discharge, recover their sludge into energy, reduce their CO2 emissions, decontaminate soils and promote biodiversity.
In New Delhi, SUEZ has designed and built a 68 MLD Sewage Treatment Plant to trap the wastewater flowing in the open drain (Delhi Gate Nalla). This plant treats the sewage water to a high level, so that only clean, treated effluent is discharged into the river course, thus contributing towards the abatement of pollution in the river Yamuna. This plant is almost 50% energy self-sufficient, which is met by a captive biogas-based power generation system. This plant is equipped with Odour Control and Treatment System – a first of its kind in the history of Indian STPs.
Similarly, in Mumbai, SUEZ is in the process of building a 37 MLD Colaba Wastewater Treatment facility that will treat sewage, which otherwise was flowing into the sea polluting it. The plant will be equipped with Disc Filtration & Chlorination for tertiary treatment, allowing potential reuse of treated wastewater. Equipped with SUEZ’s technology AZURAIR C for odor removal, it will perfectly integrate into its environment.
Technology is at the heart of our business to improve the efficiency of the resources use. Real-time management of water and sanitation services, optimization of energy consumption in plants – these are all solutions generating significant economic and environmental savings for our customers.
SUEZ has introduced Helium Leak Detection technique in India that detects invisible leaks in the water network. This technique is a major milestone in two significant ways – 40-50% of water is usually lost in the network due to invisible leaks and, in the absence of any technology to detect it, utilities were generally not aware of the cause of this enormous loss. Secondly, it is particularly helpful for Indian cities because it is a very compact technique and thus has zero residents’ disruption – all work could be carried out on during the busy traffic hours. The detection can also be undertaken in the cramped narrow streets of slum an urban villages.
The Wazirabad Recycling Water Treatment Plant, in New Delhi, inaugurated in 2010, uses advanced technologies to treat the wastewater and sludge (from filters and clariflocculators) from an existing drinking water production plant and making it fit for human consumption. Because of this, an additional 50,000 m3 per day of water is pumped into Delhi's distribution system, benefiting around half a million people, especially residents of the Burari area in North Delhi.
An F&B company in India had a unique requirement: it wanted to reduce freshwater consumption while increasing production volumes and capacity of the plant. Additionally, it needed a solution that would enable them to double wastewater treatment capacity and improve effluent quality without expanding the existing footprint of the treatment plant. Unable to expand the plant’s footprint, the firm required a compact technology solution to retrofit the existing wastewater plant. SUEZ proposed its ZeeWeed* 500D Membrane bioreactor (MBR) solution. This drastically reduced the required plant footprint by eliminating the need for secondary clarifiers.
The resource revolution is circular: transforming seawater into drinking water, sludge into renewable energy, and waste into energy or secondary raw materials, it has become necessary. By creating new, high-quality resources, we avoid drawing on scarce natural resources.
The first module of Cubbon Park Tertiary Treatment Plant of 1.5 MLD capacity in Bengaluru, designed and commissioned by SUEZ in 2006, was the first Indian Membrane Bioreactor Plant for a Public Utility Board. The plant was installed to treat municipal sewage and produce effluent complying with California Title-22 standards, for reuse in and around the Park. The treated water gets pumped from a reservoir to a sprinkler system, fitted at the 250-acre park, and the rest is used for watering other facilities near the area.
In New Delhi, in one of such initiatives, SUEZ designed and built a 182 MLD capacity sewage treatment plant at Rithala in 2002. The plant was first of its kind in India, ensuring a high level of energy self-sufficiency with innovative treatment process and electricity generation through gas engines. The plant is equipped with highly efficient SUEZ technologies like Densadeg clarifier, Biofor Filters, Sediflotazur DAF type Sludge Thickener and Suction type Secondary Clarifiers.