An estimation of the possibility of dehydration of sludge-lignin of the Baikal Pulp and Paper Mill by the freeze-thaw method was carried out. Change of sludge-lignin structure, physicochemical properties and chemical composition after freeze-thaw are shown. Toxicity and chemical composition of the water solution separated from the sludge-lignin during its freeze-thaw is estimated. An increase in the rate of germination of seeds of the cress in the soil with the addition of the frozen-out sludge-lignin in the ratio "sludge-lignin-soil" 1:3-1:4 is shown. Possibility of application and recommendations for the use of freezed out sludge-lignin as an organic fertilizer is considered. Principal possibility of the worm transformation of sludge-lignin, previously dehydrated by the freeze-thaw method, by red Californian worms Eisenia foetida Andrei Bouche (1972) is shown. The issue of prospects for processing this waste in a fertile bio-soil is discussed. The latter can later be used for recultivation of the territory of the sludge accumulator plots of the Baikal Pulp and Paper Mill.

The paper reports the calculation-experimental method for the definition of abrasion layer wear parameters and presents the results of these parameters changes depending on machining conditions at globoidal gear honing. As a parameter for the definition working surface wear in a globoidal gear hone with organic rubber-based binding there is chosen a parameter widely used for the assessment of diamond tool wear – specific consumption of abrasion. The use of this parameter allows defining dimension wear of tool abrasion layer in a computation way, including operation surfaces of the globoidal hone.

In the paper technological potentialities of globoidal gear honing are considered. With this purpose there are used complex measurements for involute gearings. A problem on a design definition of globoidal gear honing errors depending on machining conditions and parameters of a hone installation is solved. The results are presented as Talyrond traces of actual parameter deviations of the involute from theoretical ones (design parameters).

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