(8) Process and design of leachate plant
In this landfill leachate treatment plant, the pretreatment process is water quality
equalization; the main biochemical treatment process is MBR (two-stage biological
denitrification); the advanced treatment process is NA/RO; the coagulation-air
floatation + ozonation process is adopted for the nanofiltration concentrate; the
evaporation-based treatment process is adopted for the reverse osmosis concentrate;
Sludge is mechanically dewatered, and after the water content of mud cake is below
60%, buried in the landfill.
(9) Sensitive targets around the landfill
Hongqi tea plantation, Shoushan Township and Huanxi Town are mainly distributed around the Landfill Expansion Project (see Table 5.74). The Hongqi tea
plantation is close to the east side of the existing landfill and belongs to a municipal
bureau of reclamation in a province in Southeast China, with an original population
of about 200 persons. A large number of land and personnel have been requisitioned and used by the refuse disposal plant to reserve land for development of the
waste incineration power plant, while some others have gone to town to seek a
livelihood.
Shoushan Township is located in the north of an urban area in a province in the
southeast, about 7 km up the mountain from a park. In August 2004, it merged with
T Township, with a total area of 170.74 km
2 and a total population of about 12,300.
It has 22 administrative villages including T, Xixia and a certain village.
Huanxi Town, located in the northeast of Jin’an District of a city in a province in
Southeast China, merged with Guling Township in 2004, with a total area of
133 km
2 , 24 village committees, and a population of 13,000.
The villages along a creek and G creek, which are close to and closely related to
a landfill, are a certain village, Shantouding, Jiangnanzhu, Shipai, Hongqi tea
plantation, Niuxiang, Huangtian, Huzhong, Hushan, Longtou and Shanxi villages
with a total population of 4109, accounting for 28% of the total population of the
Fig. 5.39 Concentration of mercury in raw water l/L
240
5 Application Cases
In this landfill leachate treatment plant, the pretreatment process is water quality
equalization; the main biochemical treatment process is MBR (two-stage biological
denitrification); the advanced treatment process is NA/RO; the coagulation-air
floatation + ozonation process is adopted for the nanofiltration concentrate; the
evaporation-based treatment process is adopted for the reverse osmosis concentrate;
Sludge is mechanically dewatered, and after the water content of mud cake is below
60%, buried in the landfill.
(9) Sensitive targets around the landfill
Hongqi tea plantation, Shoushan Township and Huanxi Town are mainly distributed around the Landfill Expansion Project (see Table 5.74). The Hongqi tea
plantation is close to the east side of the existing landfill and belongs to a municipal
bureau of reclamation in a province in Southeast China, with an original population
of about 200 persons. A large number of land and personnel have been requisitioned and used by the refuse disposal plant to reserve land for development of the
waste incineration power plant, while some others have gone to town to seek a
livelihood.
Shoushan Township is located in the north of an urban area in a province in the
southeast, about 7 km up the mountain from a park. In August 2004, it merged with
T Township, with a total area of 170.74 km
2 and a total population of about 12,300.
It has 22 administrative villages including T, Xixia and a certain village.
Huanxi Town, located in the northeast of Jin’an District of a city in a province in
Southeast China, merged with Guling Township in 2004, with a total area of
133 km
2 , 24 village committees, and a population of 13,000.
The villages along a creek and G creek, which are close to and closely related to
a landfill, are a certain village, Shantouding, Jiangnanzhu, Shipai, Hongqi tea
plantation, Niuxiang, Huangtian, Huzhong, Hushan, Longtou and Shanxi villages
with a total population of 4109, accounting for 28% of the total population of the
Fig. 5.39 Concentration of mercury in raw water l/L
240
5 Application Cases