This morning I visited a cake factory that uses enormous quantities of slivki - Russian sweet cream. The grease sticks to the municipal sewage pipes and produces obturations. The owner was unfriendly: I know how to make cream cakes, you are the expert in whatever the municipality wants from me. He hates the very idea of having to spend money in something doesnt bother him. I have to think something, as a regular sized FOG interceptor will not be effective enough. The cream is composed of the higher-butterfat layer skimmed from the top of milk before homogenization. It has about 50% butterfat and has thickening agents and stabilisers added. This malevolent white gooey will not separate from the water and it sticks to the pipes.
This slivki (sweet cream) (and not smetana as I originally wrote) is a headache - and I love it too much. (Thanks to K. for the correction: it is slivki and not smetana, which is sour cream).
6 comments:
I always thought that smetana was sour cream, not sweet. Sweet cream (the kind that is whipped into a foam or what the Viennese call schlag ) as in the delicious (but high fat) cakes in the pictures is called Slivki. In sour cream the raw material is the same high butterfat layer that you refer to, but this is cultured like yogurt and becomes even thicker. No?
K
Anything that tastes good seems to muck up the plumbing either in the body or the cleaning and sewerage systems. As the Count said the less we know of how laws and sausages are made, the better.
K
Your encyclopedic knowledge puts me to shame. I'll have to ask my wife. The name of the pictured delicacy in Hebrew is pazmaniyot.
Slivki zbtiye she said. I changed the title of the note. Thanks.
"Encyclopedic" is about right in that my knowledge is broad but rather shallow. My son has taken after me and is an inveterate Wikipedia reader (and sometimes corrector) even when he should be doing his school work. I knew enough (from my parent's Yiddish, not from the encyclopedia) to know that smetena is sour cream but I confess I had to look up взбитые сливки. Having the internet at your fingertips is a tremendous resource in such cases and helps me to fake broad knowledge even when I don't have it really.
K
Try increasing the pH of the waste stream to saponify (turn to soap) the oils in the waste water, this should solve the issue of separating fats, oils and greases, but may cause issues if your client has to meet COD or BOD discharge requirements.
Simple caustic (NaOH) should do the trick. Try it on a small sample first.
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