UNDP/GEF???? ????????????????????? UNDP/GEF demonstration project

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UNDP/GEF?????????????????????????UNDP/GEF
demonstration projectbiogas project in
Hangzhou Dengta farm
???????????? Hangzhou Energy Environmental
Engineering Co.,Ltd Websitewww.hzeeec.com,
E-mailinfo_at_hzeeec.com
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?? Background

• ???????,????
• ???200,000??,??120,000??
• ???185t???3,000t??
• ????CODcr10,000mg/L,
• SS4,000mg/L,
• NH3-N900mg/L
• ????????????????GB18596-2001
• 1999???UNDP/GEF??????????????

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???? Design principle

• ???
• ????,???????????????,
• ??????????
• ???
• ???????????
• ?????????????????
• ???
• ?????????????????,??????
• ?,???????????,???????????

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???????????-1The technological characteristics
of main units

• ??????,???????
• ??1????????????
• 2??????????,????
• 3??????????????,??
• ?????????

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???????????-2The technological characteristics
of main units

• ?????????????
• ????????????
• ??
• 1?????????
• 2?????15d
• 3??????,?????650900 C,
• ???????
• 4??????gt35,???????gt6,
• ??lt18

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??????????? Compost
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???????pre-treatmentseparator

• ???
• ???
• ?????????????

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???????
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???????????-3The technological characteristics
of main units

• ??????anaerobic digester
• ??UASB,??gt200C????,????
• ???????????????????
• ????
• ????6000m3
• HRT2d
• CODcr???85
• ????biogas8500m3 /d

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???(UASB)
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???????????-4The technological characteristics
of main units

• SBR????? aerobic digester
• ?????????????????
• ??????1500m3,?4?,
• PLC??,????
• ????8h,??1h,?????4h,??1h,
• ??1h?
• ????CODcr 90,NH3-N 99.2

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SBR?????
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???????????-5The technological characteristics
of main units

• ????? biogas usage
• ??(Q8500m3/d)?????????,????
• 1?????( 67)
• 2?????(24)
• 3?????(3)
• 4???????(6)

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???? biogas usage
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???????? index of technology and economy

• ????(biogas product ) 3,100,000m3/a
• ??COD18450t/a
• ?????(compost)40,000t/a
• ??benefit
• 1?????6000 m3/?0.6?/ m3365?131??/?
• 2??????142?/?40?/?365?207??/?
• ???????2.27?
• ?????1497??

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???? Final effluent
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