The awareness that agriculture, construction and transport can significantly affect the environment is greatly raised in Delta Holding. All member companies achieve significant contribution to environmental protection by optimal utilization of natural resources, monitoring of energy and water consumption, selection and disposal of waste.
In the field of environmental protection, the company applies the management system with strictly regulated rules in order to ensure compliance with legislation. The company makes additional efforts, using renewable energy sources whenever there is the possibility and market viability for this. Apart from that, on annual basis, the managers responsible for environmental management identify areas that can be improved, independently or in cooperation with national and international experts.
In all office buildings, hotels and shopping malls there are posters and stickers with the recommendations to use the stairs instead of elevators, to close the doors in order to save energy, to turn off lights, air conditioners and computers after working hours. The employees keep records in electronic form, and printers are set to double-sided printing. The stickers with appeals to save water and paper are placed in toilets.
In 2014, the plan envisaged under the CSR strategy regarding the centralization of energy efficiency management was implemented. A team of experts led by Delta Holding energy efficiency manager was created with the following objectives:
- Identify key processes that could be improved in order to achieve savings in energy consumption
- Introduction of technological and procedural measures aimed at rational use of energy
- Active involvement in the design and construction phases of new facilities and reconstruction of the existing facilities in order to achieve maximum energy efficiency during operation
- Supervision of the exploitation and utilization of all of power generating plants
- Centralized monitoring in the implementation of procedures for the energy certification of structures
- Proposing projects and budgets for the promotion of energy efficiency
- Improvement of reporting procedures on energy consumption and the achieved savings by the implemented improvements
- Preparation of an internal rulebook on energy efficiency in 2015
Delta Agrar Group continued with the implementation of initiatives within the scope of projects launched in 2013.
„Cleaner Production“ Project
The project called Cleaner Production, implemented under the patronage of the United Nations Industrial Development Organization (UNIDO), Austrian Government and the Centre for Cleaner Production of the Faculty of Technology and Metallurgy, University of Belgrade, was carried out in 5 companies within Delta Agrar Group (Jedinstvo d.o.o., Napredak a.d., Kozara a.d., Podunavlje a.d., Delta Agrar d.o.o.).
In 2014, these companies of Delta Agrar were presented with the certificate by the UNIDO Organization in confirmation of the successfully implemented environmental projects and achieved financial savings.
In the first year, the member companies of Delta Agrar Group implemented 30% of options defined under the project, thus gaining a number of improvements: namely, the reduction of electricity, water, coal and gas consumption, and the reduction of CO2 emissions together with the introduction of energy management in the entire system of Delta Agrar Group.
During the reconstruction and modernization of facilities in the future period, Delta Agrar Group intends to implement the major part of the remaining options, in order to achieve even more efficient utilization of raw materials, energy and water.
The „Low Carbon“ Project
During 2014, the UNIDO regional Low Carbon Project involved 12 companies from the agricultural sector of six countries (Serbia, Croatia, Montenegro, Macedonia, Albania and Moldova). The farms under Delta Agrar Group were involved in the project as well, namely: the cattle farm Petrovic Salaš (Napredak a.d.) and pig farm Halovo from Zaječar (Delta Agrar d.o.o).
The aim of the project was to assess the possibilities of reducing fossil fuel consumption and CO2 emissions through the optimization of the existing energy supply systems and the introduction of alternative processes for obtaining energy from renewable sources.
On the cattle farm Petrović Salas, the implementation of the proposed option to acquire a pump that moves the hot refrigerant to the heat exchanger enabled savings in the consumption of Freon and 3,050 kWh (11 GJ) of electricity . This resulted in the annual reduction of CO₂ emissions of 3.05 tons.
At the beginning of 2015, as the energy efficiency measure, compensation of reactive energy will be implemented by means of installation of capacitor banks. Expected savings is 1.8 million kWh (6,480 GJ), or EUR 11,500 annually.
At the pig farm Halovo, coal consumption and CO₂ emissions are reduced through balanced utilization of boilers for heating of the facilities according to weather conditions. Balancing of the boilers implies even dosages of coal (at regular intervals) and more efficient use of softened water.
In 2014, the reconstruction of the boiler was completed thus enabling the replacement of coal granulation (instead of the “washed walnut” lignite of 14.189 KJ/kg calorific value, brown coal is used from the mine „Soko“ from Čitluk (60-150) with calorific value of 19,150 KJ/kg). In this way the same temperature is achieved using less amount of fossil fuel by 26%, at the same time, reducing the emission of CO₂. In the future period, the installation of biomass boilers will be considered.
Renewable Energy Sources
On the pig farm Napredak a.d. , soybean straw is used for heating of the facilities (in 2014, consumption was approximately 875t), thus achieving annual savings of EUR 264.000.
Soybean straw is used for heating of the facilities on the estate Jedinstvo d.o.o. Apatin. The consumption of soybean straw in 2014 amounted to 20.4 tons, while the achieved savings are estimated at EUR 7.000.
In the member company of Delta Agrar d.o.o, namely in the unit Delta Seme, corncobs remaining after the separation of seed corn from cobs are used as a biomass in the drying process of Pioneer® corn seed. In 2014, 2.000 tons of corncobs were used for drying of 6.000 tons of corn seed. It is estimated that this practice generated savings of EUR 570.000.
In addition to cost saving, the use of biomass instead of conventional sources of energy has a very favourable impact on the environment due to the reduced carbon emissions.
Nature reserve – fishpond in Svilojevo
Within the pond in Svilojevo, owned by Jedinstvo d.o.o, in the 50 ha isles covered in reeds and rushes, on the first lake of 150 ha next to the village, a colony of strictly protected species of birds has settled. The environment within the fishpond, also inhabited by the flocks of swans during the winter, was declared a nature reserve in 2011. For all activities (cutting rush or cane) on these locations, special approvals of the Institute for Environmental Protection of Serbia are required and the burning of reed and scrub is strictly prohibited.
Delta Agrar estates, on which seed corn, sugar beet and soybean seed are grown are located in close proximity. This enables the utilization of the used, deoxygenated water from the carp pond Svilojevo for the irrigation of the nearest estate Budućnost. The amount of reused water is calculated based on the number of days and watering norm for the grown crops and it amounts to 403,706 m³.
In 2014, Delta Real Estate Group prepared the reconstruction and construction designs for two energy-efficient facilities of the DTS distribution centre and the office building “Mala kula”.
Construction of DTS distribution centre
The new modern distribution centre of Delta Transport System stretches on the surface of 20.730m². The capacity of the centre is 26.000 pallet spots, with different temperature regimes, from -20 to + 25° C.
The centre is designed in accordance with the rulebook on energy efficiency and it is categorized under C category, with an annual energy consumption of 46,56kWh / m².
All the elements of thermal layer have minimum prescribed values of the heat transfer coefficient.
Heating, cooling and ventilation are centralized, which will contribute to reduced energy consumption. Natural gas is used for heating of the building, thus minimizing CO₂ emissions.
All loading and unloading ramps in the warehouse are power driven, which enables easy and quick opening and closing at the end of loading. Cooling of the warehouse in the winter as well as its heating in the summer is prevented. Double glazed windows with aluminium frames contribute to the reduction of unnecessary energy consumption in the office space.
Water consumption was optimized as well. All water taps are equipped with the so-called time delay faucets, set for a few seconds of water jet duration.
Reconstruction of “Mala kula” office building
The reconstruction of the office building called Mala kula involved the renewal of the outer thermal layer and the interior, namely of office space, kitchen and restaurant. The new façade was placed, and all the windows and thermal layer of the roof structure are replaced. The thickness of the thermal insulation of the roof was increased by 20% (from 15 cm to 18 cm). New windows are energy efficient and allow conditioning of the temperature in the work area.
It is estimated that the consumption of gas for heating/cooling of the building will be reduced by up to 20%, as the coefficient of heat passage through the façade was reduced from 2.01 W/m²K to 1.12 W/m²K. Window shading coefficient will be from 20 – 25%, which minimises the necessity for air-conditioning of office space in the summer.
During the reconstruction of the interior, the old light bulbs were replaced with energy-saving bulbs, with lower power consumption and longer life.
The power generating facility, providing heating for the Crowne Plaza, NBGP Apartments, Mala Kula and Impulse Hall, utilizes natural gas that has the lowest emissions of harmful gasses of all energy sources. Water vapour is emitted from the power generating facility, which is also confirmed by expert reports of the licensed legal entity performing monitoring of harmful gases emission on annual basis.
Additional environmental protection measures at the Crowne Plaza
In 2014, the Crowne Plaza participated in an internal project of IHG group called Green Engage, with the main task to reduce negative impacts on the environment, improve energy efficiency and achieve various types of savings.
The table below shows significant savings in energy consumption achieved in 2014 compared to 2011, which was the last year of operation before the complete reconstruction. Savings are achieved by reconstruction of the hotel and applying the principles of Green Engage program.
During the year, 20 halogen lamps of 150W are replaced by 8W LED lamps, as well as 110 halogen lamps of 50W by LED lighting of 4,5W, thus achieving savings of 40,580 kWh of electricity (1% of total electricity consumption) annually.
The cooling system was built in the water conditioning mechanisms of heat exchangers called cooling towers, which prevents corrosion, scale and bio-growth by dosing inhibitors. This facilitates longer life of the equipment and pipelines and prevents the emergence of bacteria, silt, rust, scale.
Water taps in toilets for guests and employees have time sensors and they turn off on their own when no one uses them. Other taps and showers have limited water flow. On the water plumbing system, pressure reducers were built in.
Online Green Engage software performs automatic calculation of the CO₂ emissions based on consumption. By reducing the consumption, CO₂ emission is reduced as well.
Regular monitoring of the consumption of energy, electricity and water is conducted in the hotel, using the Central Surveillance and Management System (CSMS – BMS). Other systems for temperature control and air freshness in restaurants, halls and rooms are regulated through this system.
Regular cleaning of water heating battery and heat exchangers prevents the formation of scale deposits and sludge, which contributes to better heat exchange and energy saving. In addition, fine filters and cooling towers are regularly cleaned and the quality of water is monitored.
During the so-called Green Week, lectures and workshops are organized, on which the hotel and IHG group experts informed the employees about the measures taken to preserve natural resources and informed them about environmental protection and waste management. There was also a workshop on the waste segregation and the benefits of recycling.
Optimization of energy consumption in Delta City shopping mall
Delta City shopping-mall monitors the outside temperature, lighting and the number of visitors through the centralized system. According to these parameters, the lighting and temperature in the facility are adjusted. The replacement of old light bulbs with LED lighting is regularly performed.
Natural gas is used for heating of the facility. Twice a year, the emission of air pollutants is measured, and the report indicated that the parameters are far below the prescribed limits.
Delta DMD and DTS continuously update fleet for the transport of goods of principals and external clients. In 2014 DMD and DTS purchased 31 new cars and 6 „Volvo“ trucks. All vehicles are equipped with Euro 6 engines with reduced levels of emissions and GPS system that contributes to safe driving and influences the reduction of fuel consumption since it controls the route and speed of the vehicle.
In the facilities of Delta Auto and Delta Motors, the service of technical maintenance and security regularly implements the measures of energy efficiency (closing doors and windows, shutting down heating on weekends, turning off the lights etc.), which raises the level of energy efficiency to some extent.
Twice a year, Delta Motors carries out the measuring of harmful combustion products from the gas boiler room, thus significantly reducing the risk of air contamination. The measuring is performed by an authorized laboratory that takes care that the results are always within the environmentally tolerable limits.
Caring for Water
All member companies of Delta Holding take care about wastewater. Construction of the sewage network in the new distribution centre DTS is so designed that the water from the restaurant for employees is purified via grease separators, while storm water from car park is purified using two separators of light petroleum products, water from the battery cells are conducted to the manhole, whereas other waters are treated as unpolluted and as such they are conducted directly to the sewage system.
In the Crowne Plaza Belgrade and Delta City shopping mall, waste water from the of restaurant kitchens are purified through the separator of grease and oils, and these in turn are regularly emptied. The authorized companies collect waste and dispose it to the dump specific for that type of waste. Movement of waste is accompanied by appropriate documentation.
In Delta City shopping mall, wastewater from car park is purified through separators of light liquids, in order to prevent the risk of oil or gasoline leakage from parked cars.
Furthermore, in 2014, in the service centres of Delta Motors and Delta Auto, special attention is dedicated to the care about wastewater. Using the system for completely controlled reception of oily atmospheric water from all surfaces, as well as the separator of oil/water for treatment of oily water before releasing it into the recipient, reduces the risk of contamination of the soil and watercourses. Laboratory monitoring of wastewater is carried out by an authorized laboratory (City Institute for Public Health) four times a year, even though this is not a legal obligation of the company.
All the member companies of Delta Holding are engaged in the selection, storage and disposal of waste in cooperation with the authorized recyclers. Office space is equipped with bins for sorting paper and plastic waste. Depending on the type of activities, disposal of specific types of waste generated in the production process is organized in each member company.
In addition to regular activities, the cross-border disposal of 13,021.00 kg of hazardous waste was carried out in 2014 within Delta Agrar Group. As a confirmation of adequate procedures, authorized operator submitted to Delta Agrar legally prescribed documents pertaining to waste movement (Movement document for trans-boundary movements/shipments of waste; Certificate of disposal).
Delta Pak, operating within Delta Holding, is the operator responsible for managing of packaging waste, with the task of linking the organizations placing packaging on the market with recyclers. In line with the Law on Packaging and Packaging Waste („Official Gazette of the Republic of Serbia“, No. 36/09), these organizations are required to provide proof on the disposed amounts of packaging waste, placed on the market. They can perform this requirement on their own or through operators.
In 2014, Delta Pak planned and organized the activities of collection, transport, storage, treatment and disposal of packaging waste by 86 organizations.
Delta Pak invests in education of the population on the selection and proper disposal of waste and other projects aimed at reducing environmental pollution.
Since 2011, Delta Pak has been participating in the project called Volunteer Centre of the public utility company „City Markets“ from Belgrade. During 2014, on the markets of Belgrade, Delta Pak experts educated volunteers on the management of packaging and packaging waste, legislation, and on social responsibility in theory and practice. The volunteers (students of agriculture, law and economy) were presented with the results and improvements resulting from such cooperation of the public utility company and specialized operators.
Students from the Volunteer Centre and Delta Pak experts visited the estate Podunavlje in Čelarevo, where they learned about packaging and packaging waste in the primary production of fruit and vegetables and optimization in the form of reuse of packaging in crop production. They also visited ULO cold storage facility, one of the largest orchard coolers in this part of Europe.
The construction project of the distribution centre DTS also envisaged the so called “Eco Yard” for storage of all types of waste generated in the course of provision of services (paper, cardboard and nylon waste as the most common types, as well as metal, batteries and electronic waste).
In 2014, the non-compliance with laws and regulations governing the area of environmental protection was not recorded in Delta Holding, and in this respect, there were neither disputes nor fines related to the violation of regulations governing the protection of the environment.