Improved Sanitation in Beijing
The Beijing Environmental Sanitation Engineering Group Limited has transformed itself into a comprehensive, urban and rural environmental services provider.
December 21, 2017 was an important day for the Beijing Environmental Sanitation Engineering Group Limited (BESG). That very same day, the year before, General Secretary of the CPC Central Committee Xi Jinping made an important announcement at the 14th meeting of the Central Leading Group on Financial and Economic Affairs on how the garbage classification system needed to be applied nationwide. This was the first time for a head of state and head of the Party to give instructions on handling garbage. Xi had noticed people’s concerns and fully applied a people-centred philosophy, a shot in the arm for BESG on its innovation-driven, quality development track.
The company has been guided by the Central Government concepts, especially combining green with ecological development, and has broadened its management philosophy, experience and technology, applying them in more than 40 cities. Progress has been made in its equipment innovation as well as in new, technological, specific solutions to garbage disposal.
That means that BESG has transformed itself into a comprehensive, urban and rural environmental services provider. In doing this, it has linked consultation, planning, design, construction and services with a single, one-stop urban environment provider.
Accordingly, on December 21, 2017, BESG published its annual scientific and technological report and announced its “Three Solutions” approach to urban garbage sorting, rural environmental sanitation, and urban lanes. Meanwhile, it announced that it will work with the China Gezhouba (Group) Co., Ltd. (CGGC) in building a disposal and utilisation platform for solid waste. As the Chinese New Year approaches, BESG is pooling its many resources to set off on a new journey.
Seven ‘Black Technologies’
“Our new strategy features innovation- driven development. Because sanitation requires manpower and equipment, improvements and breakthroughs in equipment are a common concern and major objective of the industry,” is how the ViceGeneral Manager and spokesman of BESG, Luo Wei, described how to form a world- class comprehensive service provider in the environment field. BESG has implemented an innovationdriven development strategy with the latest scientific and technological advances in sanitation.
Disposal Techniques and Kitchen Garbage Equipment
After five years of R& D, BESG’S advanced equipment now includes a high- pressure press separator that can break down and separate household garbage and kitchen garbage in an adaptable way, with greater efficiency, and little loss of biomass. BESG has also developed a type of shaker that can separate broken glass, broken ceramics, shells, bottle caps, and stainless steel efficiently and turn the biomass of kitchen garbage into pulp.
BESG’S ultra-high-temperature aerobic fermentation technology treats organic solid waste with the help of microorganisms and can dispose of sludge, livestock and poultry waste, kitchen garbage and other organic waste. These waste products decompose under ultra-high-temperature and the fermented products can be used as organic fertiliser.
In keeping with its sustainable development philosophy, BESG has developed a landfill technique with bioreactor accelerated stabilisation at the core, and sifts stabilised waste, producing nutrient soil, roadbed materials, and other products. Emptied landfill areas can be filled with new waste.
To address the difficulties associated with the traditional biogas purification process, BESG has developed movable biogas separation and purification equipment with a six- step filtration process and can remove harmful micro- constituents in methane gas so that methane concentrations can reach 99 percent after purification.
Flammable Ice out of Landfill Gas
In its scientific innovation, BESG has focused on heat and mass transfer in a multiphase reaction system and has come up with flammable ice technology, whereby landfill gas (marsh gas) meets water, producing flammable ice with a certain amount of gas concentration and different structure.
Leachate Mobile Treatment Plant
BESG uses biology, chemistry, physics, and photosynthesis to turn liquids from degradation-resistant, black, stinky garbage into colourless, odourless reclaimed water for urban dusty and green spaces.
Plasma Gasifying Technology
This is a new alternative for incineration technology that BESG developed so that household garbage can be turned into combustible gas for producing electric and heat energy with no polluting gas, including dioxin, produced.
Three Solutions for Urban Issues
In accordance with Xi Jinping’s decisions on the garbage classification system of December 21, 2016, BESG has worked out a way to handle urban garbage sorting, improving rural environmental sanitation, urban lanes, the environment, and sanitation in both urban and rural areas.
Urban Garbage Sorting Plan
Garbage sorting is not just a matter of how we discard the garbage, but an entire process of discarding, collecting, transporting, and disposing that are interlinked. Without a system, these segments can’t go far. BESG has worked out a systematic, smart- sorting solution for garbage that has been applied in 1,000 neighborhoods and by over 100 organisations, and has benefitted nearly 500,000 people. This “e- resource” system has become a leader in the garbage- sorting platform industry. BESG’S Garbage Sorting Standards and Technological Norms responsibly teaches how to put solid waste of different types into designated containers or storage areas.
Solving Rural Environmental and Sanitation Problems
Rural areas have poor garbage collecting, transporting and disposal systems, resulting in frequent problems. The current modes result in insufficient funds for rural garbage treatment, and severely limit rural garbage sorting development. BESG’S overall solution for this is to develop management of solid waste through a comprehensive system of sorting, collecting, and transportation.
Urban Lane Environmental and Sanitation Work Norms
The treatment of urban lanes is an important sign of the overall urban environmental condition. When we consider that urban lanes are often “cramped, disorderly, and scattered about,” combined with the climate problems of Beijing, the company has done trials for more than a year to come up with a regional, season- and people-based model and improved equipment for cleaning them up. It resulted in a proportion of small, allelectric sanitation vehicle working areas of no less than 50 percent of BESG’S total working area.
Cooperating with Gezhouba for a Livable City
CGGC and BESG entered into a cooperation agreement on December 20, 2017, to build a disposal and utilisation platform together, and to set up the Gezhouba-besg Co. using BESG technology for sorting solid waste, such as paper, rubber, fabrics, and plastic, and harmful waste. Luo Wei explains that Beijing’s environmental sanitation should meet the standards for turning it into a world- class harmonious and livable capital and the sanitation sector should improve the environment and ecology, deal with pollution effectively, ensure the cyclic utilisation of resources, and employ low- carbon development. It also needs to find better ways to meet people’s needs in the areas of convenience, livability, diversity, and fairness. In this, BESG’S innovations will be further applied and upgraded in management and practice.
Testing out new sanitation equipment