[編輯] 英漢辭典：D

daily variation coefficient 日變化系數

dalton 道爾頓

decarbonation 去二氧化碳器

decolourization ratio 脫色率

deep cooling pond 淺水型冷卻池

deep well,drilled well 管井

deep well screen 管井濾水管

defoamingagent 消泡劑

degasifier 除氣器

degradation 降解

deionization 去離子器(DI)

demineralization 軟化

demineralized water 除鹽水

depth ratio 充滿度

desilication, silica removal 除硅

desilting basin,grit chamber 沉沙池(沉砂池)

detergent 清潔劑

dealkalization 脫堿

dialysis 滲析

Diluting rate at first 最初稀釋率

Dilution 稀釋

diffused air aeration 空氣擴散曝氣

Diffusion Coefficient 擴散係數

dircet cooling water 直接冷卻水

Discharge 排洩

disinfection 消毒

Distillation 蒸餾法

dispersant 分散劑

Dispersivity 延散度

dissolved air vessel 氣浮溶氣罐

Dissolved oxygen (DO) 溶氧量

Dissolved solids 水溶性固體雜質

Distillate 蒸餾物

distribution system,pipe system 配水管網

domestic sewage,domestic wastewater 生活污水

domestic water 生活用水

double bed 雙室床

Drainage waterway 排水路

drift 飄滴

drift eliminator 除水器

Drinking water 飲用水

Drinking water disinfection 飲用水消毒

Drinking water equipment 飲用水設備

Drinking water source protection area 飲用水水源水質保護區

Drinking water treatment 飲用水處理

drop man hole 躍水井

dry cooling tower 乾式冷卻塔

dry cooling tower 溫式冷卻塔

dry weather flow 旱流污水

dry-wet cooling tower 乾濕式冷卻塔

duad bed contactor 雙塔連續再生移動床

dug well, open well 大口井

duration of rainfall 降雨歷時