Water Treatment 2: Reed Bed

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55 Terms

1
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purifying dirty water

(v.phr) làm sạch nước bẩn Plants play a crucial part in purifying dirty water.

2
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subsurface flow wetlands (SSFW)

(n.phr) vùng đất ngập nước dòng chảy ngầm Subsurface flow wetlands are a common alternative.

3
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treatment of wastewater

(n.phr) xử lý nước thải For the treatment of wastewater in rural areas.

4
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conventional mechanism

(n.phr) cơ chế thông thường The conventional mechanism of water purification.

5
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large volumes of water

(n.phr) khối lượng nước lớn Where there are large volumes of water to be purified.

6
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transfer oxygen

(v.phr) vận chuyển oxy The common reed has the ability to transfer oxygen.

7
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root system

(n.phr) hệ thống rễ A high population of microorganisms occurs in the root system.

8
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aerobic, anoxic, and anaerobic conditions

(n.phr) các điều kiện hiếu khí, thiếu khí và kỵ khí In zones of aerobic, anoxic, and anaerobic conditions.

9
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moves very slowly

(v.phr) di chuyển rất chậm As the waste water moves very slowly through the roots.

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natural biological processes

(n.phr) các quá trình sinh học tự nhiên Natural biological processes interact to degrade pollutants.

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degrade or remove pollutants

(v.phr) phân hủy hoặc loại bỏ chất gây ô nhiễm To degrade or remove a good range of pollutants.

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consume a lot of oxygen

(v.phr) tiêu thụ nhiều oxy Dirty water… consume a lot of oxygen in the water.

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aquatic creatures

(n.phr) sinh vật thủy sinh Which will lead to the death of aquatic creatures.

14
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absorb carbon dioxide

(v.phr) hấp thụ khí CO2 They not only absorb carbon dioxide and release oxygen.

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release oxygen

(v.phr) giải phóng oxy And release oxygen into the water.

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absorb nutrients

(v.phr) hấp thụ chất dinh dưỡng But absorb nutrients from the water as well.

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excellent water purifiers

(n.phr) những máy lọc nước tuyệt vời Bulrushes are excellent water purifiers.

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remove excess nutrients

(v.phr) loại bỏ chất dinh dưỡng dư thừa They remove excess nutrients from the water.

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grow freely

(v.phr) phát triển tự do Algae grow freely in summer.

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die off

(phrasal verb) chết hàng loạt And die off in winter.

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foul the bottom

(v.phr) làm bẩn đáy (hồ) Their remains foul the bottom of the pool.

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artificial reed beds

(n.phr) bể lau sậy nhân tạo Artificial reed beds purify water.

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a dense layer of root hairs

(n.phr) một lớp lông rễ dày đặc When a dense layer of root hairs has formed.

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fully develop

(v.phr) phát triển đầy đủ It takes three years for the roots to fully develop.

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sludge treatment

(n) xử lý bùn thải The use of wetlands for sludge treatment.

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agricultural wastewater

(n) nước thải nông nghiệp The treatment of agricultural wastewater.

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industrial wastewater

(n) nước thải công nghiệp Treatment of some kinds of industrial wastewater.

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diffuse pollution

(n) ô nhiễm lan tỏa The control of diffuse pollution.

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slightly polluted

(adj) bị ô nhiễm nhẹ If the water is slightly polluted.

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free

water surface

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sub

surface water

32
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effluent flows freely

(v.phr) nước thải chảy tự do The effluent flows freely above the sand/gravel bed.

33
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undergo pretreatment

(v.phr) trải qua xử lý sơ bộ Effluents that have undergone some forms of pretreatment.

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invaluable role

(n.phr) vai trò vô giá Play an invaluable role in tertiary treatment.

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tertiary treatment

(n) xử lý bậc ba An invaluable role in tertiary treatment.

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use up lots of land space

(v.phr) tốn nhiều diện tích đất They use up lots of land space.

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a sealed, gravel filled trench

(n.phr) một rãnh được lấp đầy sỏi và kín A sealed, gravel filled trench with reeds.

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percolates slowly

(v) thấm qua từ từ The effluent… percolates slowly through the different layers.

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outlet pipe

(n) ống xả Percolates… into an outlet pipe.

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unpleasant smells

(n.phr) mùi khó chịu There should be no unpleasant smells.

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biochemical oxygen demand (BOD)

(n) nhu cầu oxy sinh hóa In reducing biochemical oxygen demand and suspended solids.

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suspended solids (SS)

(n) chất rắn lơ lửng Reducing BOD and suspended solids levels.

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eliminating smells

(v.phr) loại bỏ mùi But also in… eliminating smells.

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handling much stronger effluents

(v.phr) xử lý nước thải ô nhiễm nặng hơn They are capable of handling much stronger effluents.

45
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heavily polluted matters

(n.phr) các chất bị ô nhiễm nặng Effluents which contain heavily polluted matters.

46
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requires more management

(v.phr) đòi hỏi nhiều sự quản lý hơn It requires more management.

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operated for a few days then rested

(v.phr) vận hành vài ngày rồi nghỉ Reed beds are often operated for a few days then rested.

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less expenditure

(n.phr) ít chi phí hơn Requires less expenditure for installation.

49
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operation and maintenance

(n) vận hành và bảo trì For installation, operation and maintenance.

50
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improve the surrounding landscape

(v.phr) cải thiện cảnh quan xung quanh Can improve the surrounding landscape.

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natural habitats

(n) môi trường sống tự nhiên Reed beds are natural habitats.

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environmentally friendly

(adj) thân thiện với môi trường An environmentally friendly way of treating wastewater.

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visually unobtrusive

(adj) không làm mất mỹ quan And visually unobtrusive way of treating wastewater.

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cost effective

(adj) hiệu quả về chi phí More cost effective to install.

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environmentally sound

(adj) lành mạnh về mặt môi trường Naturally environmentally sound.