Waste Water Treatment

HERBAL SEWAGE TREATMENTFrom sewage into drinking water.

CALA CASA INDIA PVT LTD
Is a platform in INDIA and is partner with
CALA CASA SL Spain
KRIVA ROCHEM – ROCHEM TECHNICAL SERVICES Germany
ECO HEALTH PRODUCTS PVT LTD

 

Introduction

CALA CASA SL a CALA CASA INDIA PVT LTD Partner

Cala Casa is a company established in Spain and has experience spanning nearly two decades in various projects across the world. Cala Casa has been involved in projects in Asia,Australia and Africa and has collaborated with many professional entities and groups around the world including Europe and the United States. Thus,Cala Casa brings a vastnetwork of relationships, expertise and experience relevant to the conceptualisation, preparation and implementation of desalination, water reuse and power projects.

KRIVA ROCHEM EUROP NV and KRIVA ROCHEM GROUP
-a CALA CASA INDIA PVT LTD partnerKriva-Rochem Europe n.v. is an international organisation, which was founded by Willem van de Graaf, KR’s Chief Executive Officer and Managing Director, who is an internationally recognised and respected water treatment expert. ”KRIVA ROCHEM NV and ROCHEM GERMANY which is centrally located in the European Common Market and is adjacent to other major countries in which Kriva-Rochem Europ n.v. and Rochem Germany operates.KR’s initial markets included the manufacturing, sales and operations to marine and industrial clients of its water treatment systems, using a unique reverse osmosis system. The R/O system is fully automatic, easily maintained, avoids common fouling problems and does not require any chemical pre-treatment. Currently there are over 1800 installations in over 55 countries worldwide, KR’s technology is primarily in use by private ship and government navies, including navies of the North Atlantic Traty Organization (NATO)KR has introduced additional application, which has expanded both the scope and market of KR’s products to industrial, commercial and large residential application for its clients. In 1989, KR expanded its business internationally to handle liquid toxic waste in landfills. One of its clients is Schoberg, which is the largest waste disposal site in Europe.As a result of this liquid management expertise, KR further expanded its business to meet the demand to design and construct facilities to handle the desalinisation of sea water.

ROCHEM Patent : EP 1127 849 B1

Sewage treatment systems

The patented membrane bioreactor Rochem Bio-Filt® has been mainly developed for waste waters treatment thanks to its high efficiency, can be also employed for some particular functions such as containerised mobile plants and special plants for landfill leachate and industrial waste water treatment.Thanks to the modular configuration it is possible to build systems with capacities ranging from 10 to over 500m3/day in the following configurations:

• Standard
• Military (In full compliance with all international laws)</li<
• Containerised
• Custom made
• Fully automated

ECO HEALTH PRODUCTS PVT LTD a CALA CASA INDIA PVT LTD partnerSEWAGE AND WASTE-WATER MANAGEMENT

USING ECO-TEC PROCESS

Fresh, potable water is increasingly becoming a rare commodity, with traditional sources like rivers, lakes, tanks and ponds becoming progressively converted into cesspools of sewage. Traditional sources of fresh water like rivers, lakes and ponds have become polluted with a combination of untreated sewage, industrial effluents, outflow from leather tanning units, effluents from sugar mills, paper mills and textile units, waste water from fish processing units, etc. with dangerous levels of bacteria and a multiplicity of toxins that it is unfit for washing or irrigation, let alone drinking.

Even in places with good rainfall, poor sewage management has resulted in untreated or partially treated sewage being let out into canals and drains to be washed away by rainwater. The sewage finally ends up in the rivers, ponds, lakes or backwaters, polluting them. Quite a lot of the sewage penetrates or leaches into the soil along its circuitous journey polluting the ground water. As a result, coliform bacteria and E-coli count in ground water is alarmingly high, making the water dangerously unfit for drinking.

ECO-TEC PROCESS has been developed which is an eco- friendly technology that makes use of natural products for treating sewage, wastewater and several forms of industrial effluents and converting them into water fit for re-use. This technology can also be used for treating potable water to ensure that it is absolutely safe, germ-free and truly fit for drinking. The additional expenditure incurred in implementing this process can be more than justified by the substantial improvement in public health and the drastic reduction in the cost of medical expenditure.

The ECO-TEC PROCESS is a very simple process for treating sewage using reagents to convert it into potable grade. The process consists of two simple steps:

• Organic solid waste digestion, and
• Flocculation, sedimentation with disinfection rolled into one.

The water thus purified, after filtration through sand and carbon filters is odour-free, clear and free of harmful bacteria like E-coli and Salmonella. It is absolutely safe for re-use. The ingredients also have the unique property of de-scaling pipes. As such, it makes this treated water ideal for industrial use, particularly in boilers and AC plants.

The sludge is minimal and whatever sludge gets precipitated can be pumped out, dried and used as a very effective nitrogenous manure.
The process involves the use of:

• • E- DIGEST : An organic sludge digester that destroys 80% of the solid wastes in the sewage, while controlling the foul odour caused by gases like Hydrogen Sulphide, Ammonia and Methane. The dosing required is marginal – 5 ppm.
  • E- CLEAN- : A proprietary reagent prepared from natural extracts that flocculates and sediments sludge within minutes of dosing while also eliminating all the harmful bacteria.

Once filtered through a disc filter or a combination of glass media filter and activated carbon filters, the treated water is fit for re-use. Being of natural origin, the reagent and the treated water are totally non-toxic and safe. They have no unpleasant taste or irritating smell.

Implementation of the Eco-Tec Process using is a simple process Sludge separates from sewage Crystal clear sewage water.

The Eco-Tec Process does not involve any cumbersome machinery. Nor does it require continuous aeration. This results in considerable savings on infrastructural costs and power.

Similarly, for a very nominal cost, safe, bacteria-free drinking water can be made available through taps as is seen in developed nations such as the USA, Singapore, etc. This water is not only free of bacteria but is also free from chlorine, bleaching powder and alum compounds which are normally used in treating drinking water. This technology can be used for converting water obtained from unprotected ponds and lakes and from bore-wells to drinking grade at a very marginal cost.

USES OF TREATED WASTE WATER

Water treated by the ECO-TEC process is of drinking grade. However, globally there is a mental block against consuming treated waste water, though such water is being used for drinking in countries like Japan and Singapore. Water treated by the ECO- TEC process is therefore suggested for all other secondary uses such as:

The Eco-Tec process can be employed for treating sewage and waste water in any of the following places where large quantities of sewage or waste water is generated:

• • • Municipal STPs
    • Hospitals
    • Hotels and resorts
    • Apartment complexes and housing colonies
    • Large office establishments
    • Schools, colleges and educational institutions, especially those with hostels
    • Industrial units producing waste water

 

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Sewage And Waste-Water Management Using Eco-Tec Process

ECOHEALTH PRODUCTS PVT LTD has developed the ECO-TEC PROCESS, an eco-friendly technology that makes use of herbal extracts for treating sewage,wastewater and several forms of industrial effluents and converting them into water fit for re-use. This technology can also be used for treating potable water to ensure that it is absolutely safe, germ-free and truly fit for drinking. The additional expenditure incurred in implementing this process can be more than justified by the substantial improvement in public health and the drastic reduction in the cost of medical expenditure.

The ECO-TEC PROCESS is a very simple process for treating sewage using organic reagents to convert it into potable grade.The process consists of two simple steps :

• • • Organic solid waste digestion, and
    • Flocculation, sedimentation and disinfection rolled into one.

The water thus purified, after filtration through sand and carbon filters is odour-free, clear and free of harmful bacteria like E-coli and Salmonella. It is absolutely safe for re-use. The ingredients also have the unique property of de-scaling pipes. As such, it makes this treated water ideal for industrial use,particularly in boilers and AC plants.

The sludge is minimal and whatever sludge gets precipitated can be pumped out, dried and used as a very effective nitrogenous manure.

The process involves the use of :

• • • ECO-DIGEST:An organic sludge digester that destroys 80% of the solid wastes in the sewage, while controlling the foul odour caused by gases like Hydrogen Sulphide, Ammonia and Methane. The dosing required is marginal – 5 ppm. One litre is good to digest 2,00,000 litres of sewage.
    • ECOCLEAN-2300:A proprietary reagent prepared from herbal extracts that flocculates and sediments sludge within minutes of dosing while also eliminating all the harmful bacteria.

ECOCLEAN-2300 is a unique combination of the extracts of Azadirachta indica (Neem), Moringa olifera (Drumstick), Strychnos potatorum (Cleaning nut), Occimum sanctum (Tulsi) and Melaleuca alternifolia (Tea Tree oil) blended together using organic solvents and stabilizers. Dosed at 40 ppm (40 ml for 1000 litres of sewage), it not only induces flocculation and causes separation of both suspended and some dissolved solids but also disinfects the water, freeing it from all harmful bacteria including fecal coliforms and E-coli. One litre of ECOCLEAN-2300 is good to treat 25,000 litres of sewage.

Once filtered through a disc filter or a combination of sand and activated carbon filters, the treated water is fit for re-use. Being of botanical (herbal) origin, the reagent and the treated water are totally non-toxic and safe. They have no unpleasant taste or irritating smell.

Implementation of the Eco-Tec Process using Eco-Digest and Ecoclean-2300 is a simple process and is explained by the following diagram :

Both Eco-Digest and Ecoclean-2300 are extremely potent and dosing can be done in micro-quantities,making Eco-Tec Process one of the most cost-effective.Eco-friendly water treatment options available.

The Eco-Tec Process does not involve any cumbersome machinery. Nor does it require continuous aeration. This results in considerable savings on infrastructural costs and power.

Similarly, for a very nominal cost, safe, bacteria-free drinking water can be made available through taps as is seen in developed nations such as the USA, Singapore etc. This water is not only free of bacteria but is also free from chlorine, bleaching powder and alum compounds which are normally used in treating drinking water.

This technology can be used for converting water obtained from unprotected ponds and lakes and from bore-wells to drinking grade at a very marginal cost.

Water treated by the ECO-TEC process is of drinking grade. However, globally there is a mental block against consuming treated waste water, though such water is being used for drinking in countries like Japan and Singapore. Water treated by the ECO-TEC process is therefore suggested for all other secondary uses such as:

• • • Gardening, landscaping and irrigation
    • Laundering
    • Washing of vehicles
    • Flushing in toilets
    • Bathing
    • Industrial uses (boilers, coolant, solvent)
    • Construction
    • Regeneration of natural aquifers and groundwater
    • Regeneration of lakes, ponds and other water bodies

The Eco-Tec process can be employed for treating sewage and waste water in any of the following places where large quantities of sewage or waste water is generated:

• • • Municipal STPs
    • Hospitals
    • Hotels and resorts
    • Apartment complexes and housing colonies
    • Large office establishments
    • Schools, colleges and educational institutions, especially those with hostels
    • Industrial units producing waste water

Retrieves 98% of the waste water for re-use. A huge 98% saving on precious fresh water. Allowing for the mental block to drinking treated sewage, the water can be used for :

• • • Gardening
    • Irrigation
    • Flushing
    • Laundering
    • Washing of floors, vehicles, etc
    • Industrial uses particularly in AC plants and boilers

Extremely effective process at very economical costs.

The ingredients used in the manufacture of the reagents are all of herbal origin.Organic, non-toxic, safe and with no side-effects.

Can easily be structured into existing STPs with minimal infrastructural changes.

Does not require elaborate network of aerators,blowers and other gadgetry.
Non-power-intensive process.

Totally eliminates all harmful bacteria, particularly the most difficult E-coli, which is the cause for a large variety of water-borne disease particularly in children of developing nations.

The residual effect of disinfectant ensures days of bactericidal action. Re-contamination does not happen for days.

Very versatile process – Can be used for sewage treatment, drinking water,swimming pools, lakes, ponds and reservoirs, rivers and desalinisation plants.

Eco-Tec Process Flow Diagram

Case Study

Introduction:

Seshasayee Paper and Boards Limited (SPB), the flagship company of the ‘ESVIN GROUP’,operates an integrated pulp, paper and paper board Mill at Pallipalayam, near Erode in Tamilnadu, India.

SPB, incorporated in June 1960, was promoted by Seshasayee Brothers Pvt Limited in association with a foreign collaborator M/s Parsons and Whittemore, South East Asia Inc, USA.After commencement of commercial production, having fulfilled their performance guarantee obligations, the foreign collaborators withdrew in 1969. The main promoters of the Company as on date are a group of companies belonging to the ESVIN group headed by Mr N Gopalaratnam.

SPB commenced commercial production in December 1962, on commissioning a 20,000 tons per annum integrated facility, comprising a Pulp Mill and two Paper Machines (PM-1 and PM-2), capable of manufacturing, writing, printing, craft and poster varieties of paper.

The Plant capacity was expanded to 35000 tpa in 1967-68, by modification of PM-2 and addition of a third Paper Machine (PM-3).

In the second stage of expansion, undertaken in 1976, capacity was enhanced to 55,000 tpa,through addition of a 60 t11111er 1uf new Paper Machine (PM-4). The cachine (PM-4). Cost of the project, including cost of a Chemical Recovery Boiler and other facilities for enhanced requirement of utilities, was estimated at Rs

SPB undertook various equipment balancing and modernisation programmes, since then, for improving its operating efficiency, captive power generation capacity, etc, upto 1992-93.

Water Consumption And Sourcing:

This industry consumes around 73.4 m³ of water per ton of finished paper compared to 86.4 m³ per ton of finished paper after the water schemes. The Company has installed and operates an Anaerobic Lagoon, for high BOD liquid effluents and a Secondary Treatment System, for total Mill effluent. These facilities are operating efficiently, enabling the Company to comply with the pollution control norms, prescribed by the Pollution Control Authorities, on a sustained basis.The treated effluent water continues to be utilised for irrigating nearby sugar cane fields. The implementation of the Mill Development Plan had enabled the Mill to enhance its environmental performance and compliance thereby complying with the Charter on Corporate Responsibility for Environmental Protection (CREP) on a sustained basis.

Water Availability From River Cauvery:

The Company depends on River Cauvery for its water requirements. Inadequate rainfall in the catchment areas led to poor inflow into the Mettur Reservoir. Consequently, Mettur Reservoir is opened and closed on and off during the year, depending on the demand for drinking water and for farming by the agriculturists in Tiruchi and Tanjore delta areas. For most part of the year, storage at Mettur Reservoir was close to dead storage level, leading to ‘nil’ discharge from the Reservoir. Consequently, the flow of water in the River Cauvery was almost ‘nil’ for major part of the year. Anticipating this difficulty, the Company, by its in house water conservation measures, reduced the water consumption substantially. Continued drought and poor water flow in the River Cauvery are matters of great concern and will hamper production operations and may lead to production curtailments in future. Good monsoon, comfortable water storage in Mettur Reservoir and sustained flow of water in the River Cauvery are the only permanent answers to overcome the current difficult situation.

The Problem:

The problem faced by the firm is that the water used for paper manufacture is dirty and full of visible dirt particles which is unfit for paper manufacture. The dumping of wastes and various activities like the discharge from industrial effluents and runoff from agriculture makes the water unsuitable for the usage in paper manufacture. Due to the dirty water, the paper colour is reduced so the chemical consumption is increased in turn in order to make the paper white.

 

Report of R&D Department Of Seshasayee Papers & Boards:

12.15 am – Starting Of Dosing with High Pressure Pump.