Bulk Weight Research Articles

Survival rate, growth and condition index of tank-raised Clarias gariepinus under different salinities

The study evaluated varying levels of salinity on survival, growth and condition index of tank raised Clarias gariepinus for ten weeks. A total of 120 healthy C. gariepinus fingerlings having a bulk weight and average length of 131.73 ± 0.85 g and 5.06 ± 0.24 cm respectively were procured from the hatchery complex of University of Calabar fish farm and used for the study. Sea water was collected from Ibeno Beach and diluted with borehole water to obtain various salinity concentrations of ≤1, ≤5, ≤10 and ≤15 ppt. This represented four treatments(Tanks A to D) and each treatment had three replicates. Evaluation of growth indices and culture water parameters followed standard procedure. Results revealed significant (p < 0.05) differences with regards to food intake in the treatment Tanks A (≤1ppt), B (≤5ppt), C (≤10ppt) and D (≤15ppt). Food conversion efficiency (FCE), ratio (FCR) and protein efficiency ratio (PER) were significantly different (p < 0.05). Body weight gain were observed to be higher in Tank A with a value of 75.83± 0.07g/kg and a total length of 11.13 ±0.38cm and the lowest weight gain was recorded in Tank D with a value of 43.56 ± 0.76g/kg and a mean total length of 6.67± 0.43cm. There were significant differences (p < 0.05) in the final condition factor (K) of the fish. Hence, it could be established that C. gariepinus fingerlings can survive and be reared in 5ppt saline water without any adverse effect on growth. At salinity level above 5ppt, fish growth rate may be slow.
 Keywords: Survival rate, Growth, Clarias gariepinus, Salinity, Physicochemical parameters

Efficiency of complex agro-reclamation on irrigated lands

In recent years, due to the irrational use of land and the irregular implementation of agro-reclamation measures, there has been a rise in the level of mineralized groundwater and secondary salinization of soils, which has affected the decline in the seed-cotton yield. The area of nonsaline soils in this region is decreasing from year to year, and there is also a shortage of water resources. Irrigated lands are mostly plowed to a depth of only 30 cm. Such shallow basic tillage for such a long time contributed to the formation of a rigid "plow pan" in the arable layer and an increase in soil bulk weight and salinization, which negatively affected the yield of agricultural crops, including cotton. Currently, in serozems (grey earth), the basic tillage is carried out to a depth of 30 cm. Shallow soil plowing for many years affects the density formation in the soil layer, that is, an increase in the bulk weight of the soil and its salinization, which negatively affects the yield of cotton plantations. This complex of negative factors leads to a decrease in the fertility of serozems and soil erosion. Scientists of the Agricultural Experiment Station for Cotton and Melon Growing, in conditions of progressive dehumification and to prevent soil salinity, as well as to increase their soil fertility and cotton yield on irrigated gray-earth soils, scientific research was conducted based on the use of complex intensive agro-reclamation measures.

Workingtool for application of granulated ameliorators

This article discusses the application and distribution of granulated ameliorants in the subshovel space during tillage with subsurface cultivator. Researches show that subsoil application of nutrient granules improves the agrophysical properties of soil, which in turn increases its fertility. The article presents obtained parameters of agrophysical properties before and after the passage of tillage unit; in particular hardness, volume crumbling coefficient and bulk weight of soil changed after granulated ameliorators were introduced into soil. The obtained results are close to reference values, which make it possible to judge the practical and effective use of this working tool for application of granulated ameliorators.

The study of a new paraffin inhibitor in oil production

A new composition for controlling build up of paraffin has been developed. Preference was given to naphthenic acids, polypropylene glycol, caustic potassium and copper nanoparticles with size of 50 nm, bulk weight 5 g/cm3, specific surface area 12 m2/g. The optimal concentration of the hydrophobic reagent and its application technology under field conditions are recommended. The developed reagent is used in oil production, namely for ARPD control, in individual wells in Azerbaijan. Keywords: well; wax deposition; inhibitor; nanoparticle; electrokinetic potential.

Utilization of Liquid Organic Fertilizer of Pineapple Waste to Improving Growth of Sweet Corn Plant in Red Yellow Podsolic Soil

<em>This study aims to determine the effect of pineapple waste liquid organic fertilizer on the growth and yield of sweet corn in Red Yellow Podsolic soil and to obtain a dose of pineapple waste liquid organic fertilizer that can produce the highest growth and yield of sweet corn in Red Yellow Podsolic soil. This study used a completely randomized design (CRD), with 5 treatments repeated 5 times and 3 plant samples. The treatment given was in the form of a dose of liquid organic fertilizer with a dose of: P0 = 0 ml/l water, P1 = 25 ml/l water, P2 = 50 ml/l water, P3 = 75 ml/l water, P4 = 100 ml/l water. The parameters observed in this study were plant height, leaf area, root volume, soil pH, C-Organic content, N, C/N ratio and soil bulk weight. The data obtained were analyzed by fingerprint analysis of variance at the 5% level and then further tested with 5% HSD. Based on the results of the study, the dosage level of liquid organic fertilizer of pineapple waste had a significant effect on the variables of root volume and soil pH. However, it had no significant effect on the variables of plant height, leaf area, organic %C content, %N soil content, C/N ratio, and bulk density of Ultisol soil. The treatment level of liquid organic fertilizer from pineapple plant waste 50 ml/l gave the best results on the variable soil pH, and the dose of liquid organic fertilizer of pineapple plant waste 75 ml/l was the treatment that gave the best results on the variable root volume.</em>

UJI KUAT TEKAN BATA BETON UNTUK PASANGAN DINDING DENGAN CAMPURAN LIMBAH STYROFOAM (EXPANDED POLYSTYRENE)

Based on statistics on the amount of waste in DKI Jakarta, until plastic is in the third rank after organic waste and paper. In this study, the dimensions, bulk weight, flexural strength and compressive strength of concrete bricks for wall pairs will be tested. The main materials for making concrete bricks are cement, fine aggregate and water. Styrofoam waste will be used as a substitute for fine aggregate with variations in the percentages used, namely 0%, 10%, 20% and 30%. Using the test object in the form of a beam with a length of 390 mm, a width of 90 mm and a thickness of 100 mm. Water cement factor 0.4. Testing the test object at the age of 28 days. Dimensional test results on all variations have met the requirements. The average compressive strength of concrete bricks with variations of 0%, 10%, 20% and 30% styrofoam mixture at the age of 28 days, respectively, is 74,87 kg/cm2, 42,28 kg/cm2, 44,28 kg/ cm2 and 35,45 kg/cm2. The average flexural strength of concrete bricks with variations of 0%, 10%, 20% and 30% styrofoam mixtures at the age of 28 days, respectively, is 1,204 N/mm2, 0,473 N/mm2, 0,705 N/mm2 and 0,962 N/mm2.

Comparative effect of water and edible salts and their different concentrations on popping quality of popcorn variety- Amber

Laboratory experiments were conducted with various edible salts such as plain, rock (sendha) and black salts and their different concentrations (1%, 2% and 3%) to enhance the popping quality of popcorn variety Amber. The bulk density, weight loss, popping percent and expansion volume ranged from 0.97g/ml (3% concentration of rock (sendha) salt to 1.166g/ml (2% concentration of plain salt), 1.56% (1% concentration of rock (sendha) salt to 2.85% (2% followed by 3% concentration of plain salt), 64% (2% concentration of plain salt) to 87% (2% concentration of black salt) and 184 ml (1% concentration plain salt) to 106 ml (1% concentration of black salt), respectively. In all cases, the popping quality decreased in grains of popcorn variety Amber soaked in edible salts like plain, rock (sendha) salt and black salt as compared to grains of popcorn soaked in water.

Effect of saturated and unsaturated fats on popping quality of popcorn variety-amber

Laboratory experiment was conducted with various saturated fats (coconut oil, palm oil, cheese and butter) and unsaturated (mustard, soybean, groundnut and sunflower) in grains soaked with water to enhance the popping quality of popcorn variety Amber. the range of variability of different characteristics such as bulk density, popping percent, grain weight loss during popping and expansion volume varied from 0.83–1.07 g/ml, 88–95%, 1.56–2.81% and 182–270 ml, respectively. The bulk density and weight loss decreased with the use of saturated and unsaturated fats. However, among the saturated and unsaturated fats, grains of corn variety Amber soaked in water and dipped in unsaturated fats exhibited high popping percent and expansion volume as compared to saturated fats.

Uticaj sadržaja vlage na fizičko-mehanička svojstva sorti indijskog oraha koji je relevantan za njihovu preradu

The physioco-mechanical properties of Red and Yellow apple cashew nuts which are essential for the design and fabrications of its processing and storage facilities were studied. The major, minor and intermediate diameter of the cashew nut varied from 21.81-30.43mm, 14.01-17.18mm, 4.72-10.55mm and 19.83-27.13mm, 16.09-20.27mm, 6.38-13.97mm for Red and Yellow apple respectively. The average values of bulk weight, surface area and volume of the samples were 20.58189.5g, 826.07-342.33g, 137.67-57.05 (mm3) and 229.8-211.8g, 699.97-305.40mm2, 173.13-70.63mm3. The average values of sphericity, porosity and aspect ratio of the samples were 56.23-50.47%, 73.39-28.83%, 56.19 - 64.05% and 70.08-62.09%, 66.82-24.71%,74.60-81.00%. It was observed that all the physical properties studied increased with an increase in moisture apart from bulk density and aspect ratio that decreased across the moisture content. The mechanical properties of Red and Yellow apple cashew nut were found to be moisture content and loading positions dependent. The relationship that existed between moisture content and the mechanical properties was statically significant at (p< 0.05) level. It is also economical to load both Red and Yellow apple cashew nut at major axis loading position at 4.26% (wb) moisture content to reduce energy demand required to crack or compress the samples.

Development and testing of light-weight PV modules based on glass-fibre reinforcement

In this paper we report on our approach on integrating c-Si PV into lightweight structures, in particular towards vehicle integration. To this end we want to get rid of the (bulk weight of the) glass but seek a suitable replacement in terms of mechanical stability. First we elaborate on the most basic standards and norms that VIPV products should relate to in terms of (thermo-)mechanical testing. Then, for the experimental part, 2 concepts are investigated. In a first approach, we reinforced the encapsulant with glass fibre material, while in a second one we applied a dedicated glass-fibre-reinforced sheet as a replacement of the backsheet. In both cases we stay as close as possible to using commercially available material. For each approach we elaborate the testing that has been carried out: thermal cycling, vibrations, mechanical shock and hail impact. On a final note, we point out some initial damp heat testing results, that are a particular challenge for light-weight modules without glass.

Prediction of undrained shear strength and correlation in between soil parameters

Correlation of soil parameters has undeniable benefit in the determination of engineering properties of soil to solve problems in geotechnical Engineering area. The tests were conducted within geotechnical laboratory. These tested soil parameters, used in the correlation analysis are unconfined compressive strength, bulk unit weight and dry unit weight. The aim of this study is proposing a relationship in between the strength parameter with some of the index properties of soils using statistical regression analysis. The linear regression analyses have been done for prediction of unconfined compressive strength (qu ) from bulk and dry unit weight as model-1 and model-2 respectively. And dry unit weight was predicted from bulk unit weight as model-3. Model-4 represents the multiple linear regression analysis to predict qu . The health of developed models is measured by coefficient of determination (R 2) values. Though, model-1, model-2, model-3 and model-4 have R – squared values of 0.9112, 0.9333, 0.9109 and 0.9452 respectively. Therefore, they are correlated strongly and positively. The prediction of unconfined compressive strength of these soils correlated in linear regression, are fairly determined with Model-2 compared with model-1 and model-4 (MLR).

Application of nonlinear methods in evaluation of mineral grades

The requirements for the reliable and accurate definition of mineral reserves escalate from year to year. Earlier it was sufficient to have a model with estimated contents of useful components and their bulk weight, while today the correct mine planning model is to contain supposed mining systems and predicted mining selectivity. It is possible to use the nonlinear methods to assess mineral grades based on nonlinear transformations of sampling data. The author gives general information about nonlinear estimation methods and describes the implemented research flowchart of quality assessment of interpolation procedures for mineral grades. The main part of the article describes the following modeling methods: ordinary kriging, implicit modeling, local uniform conditioning and conditional stochastic modeling. The results of the grade estimation using these techniques are comprehensively compared. The author concludes that in mineral grade control during production, with regular dense sampling grids and with the data spacing less than the range of the variograms, the results of the estimates are almost equal to each other. Therefore, it is no need to use more complex estimation methods which require more computing power and advanced professional skills gained in resource appraisal. Using ordinary kriging on the sparse grid of drillhole data leads to distortion of the grade–tonnage curve. When the distance between drillholes is substantially greater than the size of the minimum extraction unit, a highly smoothed estimate is obtained, clustered around the local mean grade. The alternative approaches which can provide a reliable estimate of recoverable tonnage and grade based on the sparse grid drillholes data are the local uniform conditioning and implicit modeling.

Formation and mechanisms of hydroxyl radicals during the oxygenation of sediments in Lake Poyang, China

Seasonal flooding-drought transformation process of lake sediments lead to changes of dissolved oxygen and redox conditions and the resultant generation of hydroxyl radical (HO•). To date, information on HO• formation and its regulators in seasonal lake sediments is largely unexplored. In this study, a total of nineteen sediments were collected from Lake Poyang, China, with the formation and mechanisms of HO• during the oxygenation process exploring via the incubation experiments, Fe K-edge X-ray adsorption spectroscopy, ultrafiltration, and fluorescent spectroscopy. Results showed that the concentrations of HO• generated ranged from 3.75 ± 1.13 to 271.8 ± 22.81 μmol kg−1, demonstrating high formation potential and obvious spatial heterogeneity. The yield of HO• formed was positively correlated with the contents of Fe(II), sedimentary organic carbon, and dissolved organic carbon, showing a general contribution of these reduced substances to HO• formation. Furthermore, application of Fe K-edge X-ray adsorption spectroscopy revealed the key species of sedimentary Fe-smectite for HO• formation due to its high peroxidase-like activity. Besides inorganic Fe(II), the sedimentary dissolved organic matters (DOMs) represented an important regulator for HO• formation, which contributed about 2–11% of the total HO• generation. Moreover, the DOM-induced formation potential was found to be highly related to the molecular weight distribution that the low molecular weight- (LMW, <1 kDa) fraction exhibited higher HO• formation potential than the bulk and high molecular weight- (HMW, 1 kDa-0.45 μm) counterparts. In addition, the omnipresent mineral Fe(II)-DOM interaction in sediment matrix exhibited another 2–6% of contribution to the total HO• production. This study highlighted the importance of contents and species of Fe(II) and DOM in manipulating the HO• yield, providing new insight into understanding the formation mechanisms of HO• in the seasonal lake sediment.

A Review on process validation of solid dosage form

Objective: The purpose of this work is to perform a study on concurrent validation of levonorgestrel tablet BP 0.03mg that will deliver process validation approach as a quality assurance means. The process validation program will be investigated so that the plan will be designed to the character of the procedure under study. This can be performed by checking and controlling the various critical in process parameters.&#x0D; Method: The samples from the three consecutive batches of levonorgestrel tablet 0.03mg are collected at the different stages of the manufacturing from dispensing, mixing, granulation process, drying process, blending process, compression process. Each and every parameter are analyzed and tested as per the specifications and all the data are recorded. The obtained results must be within the specified limit range.&#x0D; Result: The results obtained from the evaluation of different parameters like bulk density, tapped density, friability, hardness, weight variation, and assay were found to be within specification limit range.&#x0D; Conclusion: The conclusion of the concurrent process validation of levonorgestrel tablet BP 0.03mg is based on the result of the validation data of three consecutive batches. It is concluded that the manufacturing process used for levonorgestrel consistently producing the stable product meeting it is predetermined specification and quality attributes.&#x0D; Keywords: Concurrent process validation, Process validation, Levonorgestrel, Critical process parameter.

Different effects of two dietary levels of tea polyphenols on the lipid deposition, immunity and antioxidant capacity of juvenile GIFT tilapia (Oreochromis niloticus) fed a high-fat diet

Long-term feeding of fish with a high-fat diet (HFD) causes excess fat deposition and an impairment of immune function. In the present study, we aimed to determine whether dietary tea polyphenols (TPs) would ameliorate the adverse effects of HFD-feeding in GIFT tilapia. Juvenile GIFT tilapias (5.4 ± 0.9 g) were raised in twelve 200-L tanks (three tanks per diet, 20 fish per tank) and fed a control diet (6% fat, 36% protein), an HFD (12% fat, 36% protein), or an HFD supplemented with 50 mg/kg or 200 mg/kg TP for 8 weeks. The fish were hand-fed 5% of their body weight per day in three feeds, and maintained at 28 ± 1 °C under a 14-h light/10-h dark cycle. The fish in each tank were bulk weighed and counted fortnightly, and the daily feed amount was adjusted accordingly. At the end of the trial, the cumulative survival rate was calculated, and the weight gain and feed conversion ratio were calculated according to the bulk weight of fish in each tank. Tissues were collected from nine fish per diet, their organs were weighed, and biochemical and molecular indices were subsequently measured. HFD-feeding significantly increased lipid deposition, reduced cumulative survival from 96% to 75%, reduced hepatic alkaline phosphate activity (AKP) and serum total antioxidant capacity (T-AOC); and reduced the hepatic expression of immunoglobulin M (IgM), transforming growth factor-beta (TGF-β) and glutathione-S-transferase (GST) genes versus the control diet. The addition of TPs at 50 or 200 mg/kg both ameliorated the HFD-induced increase in lipid droplets in the liver (50 mg/kg TP from 40.83% to 17.27%; 200 mg/kg TP to 25.33%), and increased the cumulative survival rate of the tilapia. The addition of 50 mg/kg TP had a marked effect increasing cumulative survival to 90%, and increasing the activities of serum acid phosphatase (ACP), T-AOC; and IgM, TGF-β, nuclear factor-κB (NF-κB), superoxide dismutase (SOD), and GST gene expression to the highest level of the HFD-fed groups. The 50 mg/kg TP-containing diet also significantly increased the hepatic expression of carnitine palmitoyltransferase 1 alpha (CPT1α) versus the control diet. In contrast, the tilapia fed an HFD supplemented with 200 mg/kg TPs had the lowest expression of adipose triglyceride lipase, hormone-sensitive lipase, CPT1α, fatty acid synthase and acetyl-CoA carboxylase alpha genes of any of the groups, which implies that the lower and higher levels of TP supplementation have differing effects on lipid metabolism. The 200 mg/kg supplement had lower cumulative survival rate (82%), and smaller effects on serum ACP and hepatic AKP activities than the 50 mg/kg dose, and had no significant effect on serum T-AOC or the expression of IgM, TGF-β, GST, or NF-κB genes in the tilapia. These results indicate that the beneficial effects of TPs on the lipid metabolism and health of fish fed an HFD are dose-related. Moreover, they are likely to be largely mediated through lipid catabolism.

Production performance of Pabda (Ompok pabda) and Gulsha (Mystus cavasius) with Rohu (Labeo rohita) in natural pond conditions

The study was carried out infourselected farmer’s pond in Netrokona sadarand Barhatta upazillas(sub district) under Netrokona district during April to September 2019 having average pond area of 0.14 haeach. The ponds were prepared by removing aquatic vegetation and unwanted fish and other animals, andapplying with lime at the rate of 250 kg/ha. Five days after liming, water was supplied from shallow tubewell to the ponds and filled up to the depth of 1.5 m. The fry of Pabda (Ompok pabda) and Gulsha (Mystuscavasius) with Rohu (Labeo rohita) were stocked at the rate of 175000; 87,500 and 2000/ha, respectively.After stocking, fish were fed at a rate of 5-12% of body weight with supplementary feed (30% crudeprotein). Fish sampling were done at monthly interval to know the fish growth status and also to adjust feedration. After six months rearing, fish were harvested by repeated seine netting. Total bulk weight and numberof fish from each pond was recorded. Survival and gross production of fish of each pond were estimated. Theharvesting weight of pabda ranged from 33 to 36g. While the harvesting weight of Gulsha and Rohu rangedfrom 26-27g and 591-614g, respectively. Based on the number of fish harvested at the end of the experiment,survival ranged from 75 to 88%.Total production of Pabda (O. pabda) and Gulsha (M. cavasius) with Rohuwas estimated at 5202, 1772 and 1066 kg/ha, respectively. The total production of fish as recorded in trialponds were 8043 kg/ha

The effect of herbicides on the yield structure elements and the productivity of oil flax

The article provides the research results concerning the effect of antidicotyledonous herbicide Sekator Turbo, OD (a.i. amidosulfuron + iodosulfuron-methyl-sodium + mefenpyr-diethyl) in a tank mixture with various graminicides Quickstep, FEM (a.i. clethodim + haloxyfop-P-methyl), Bagheera, EC (a.i. quizalofop-P-tefuryl), Fuzilad Forte, EC (a.i. fluazifop-P-butyl), Miura, EC (a.i. quizalofop-P-ethyl), and Zellek-super, EC (a.i. haloxyfop-P-methyl) on the yield structure elements and the productivity of lowlinolenic (Nilin) and linolenic (FLIZ) varieties of oil flax on leached chernozem of the Western Ciscaucasia. We have found that the treatment of sowings with herbicides did not have a significant effect on the yield structure elements (thousand-seed weight and bulk weight of seeds). The treatment of sowings of the variety Nilin with the composition of Sekator Turbo + Bagheera or Sekator Turbo + Miura, and the variety FLIZ with Sekator Turbo + Bagheera, Sekator Turbo + Quickstep, Sekator Turbo + Fuzilad Forte, Sekator Turbo + Miura contributes to the receiving of oil flax yield at the level of the control with manual weeding. Tank mixtures of Sekator Turbo + Bagheera, Sekator Turbo + Miura decreased the oil content of seeds of the variety Nilin by 0.5 %. The application of herbicides Sekator Turbo, OD (0.1 l/ha) + Bagheera, EC (1.5 l/ha) provided the highest oil yield of the variety Nilin – 0.34 t/ha, and of the variety FLIZ – 0.54 t/ha. The composition of Sekator Turbo + Zellek-super led to a significant decrease in the productivity and oil content of seeds of the variety FLIZ – by 0.15 t/ha and 0.6 %, respectively.

Yield Components and Diversity of Qualitative Characters of Fifty Accessions of Inbred Maize Lines

Challenges in maize production in Indonesia have led to the importance of assembling high yield varieties of maize. To create superior maize varieties requires genetic material particularly inbred lines as the basic material for setting population to perform crossing and selection. The research aims to characterize the quantitative and qualitative characters of 50 inbred maize which contributed to high yield and also to determine the uniformity of the tested inbred lines. A randomized group design with 3 replications was performed. Based on the results, characters with the highest variance were the number of seeds per ear and 1000 bulk weight. There were five characters with high heritability, including ear diameter, number of seeds per ear, ear wet weight, ear dry weight, and dry seed weight. The highest heritability was obtained from dry seed weight, while the lowest heritability was the number of lines per ear. The accession with the highest dry seed weight was P4G19(S)C2-114-3-1-2 (70 g), accession with the largest ear diameter and the highest number of seeds per ear was P4G19(S)C2-15-1-1-4, and the one with the largest ear dry weight was P4G18(S)C2-18-1-1. The results of the analysis on qualitative characters showed that the variation was still high within the tested lines.

KARAKTERISTIK SIFAT FISIKA TANAH ULTISOL AKIBAT PEMBERIAN BIOCHAR BERBAHAN BAKU SISA TANAMAN KELAPA SAWIT

The physical characteristics of ultisols due to the provision of biochar made from palm oil plant residue aims to determine the effect of giving various biochar made from oil palm plant residues on the physical properties of Ultisols. The research design used completely randomized design, consisting of 5 treatments, namely K = without giving biochar, BB = oil palm stem biochar, BP = oil palm frond biochar, BT = oil palm empty bunches biochar and BK = combination of biochar ingredients. Each treatment was repeated 4 times, so that the number of experimental units became 20 units. The parameters observed included soil density, soil porosity, soil texture, soil permeability and available water. The results showed that giving biochar significantly decreased the bulk weight and significantly increased the soil porosity of Ultisols.Key words : biochar, oil palm wastes, physical properties of soil and ultisol

Подготовка отходов химической переработки германиевых концентратов к утилизации

The composition of waste from chemical processing of germanium concentrates (WCGC) is characterized by the presence of germanium compounds insoluble in acids, as well as significant amounts of toxic impurities. The main phase components are calcium sulfate dihydrate and four-water calcium hypochlorite. Thermographic research on heating samples of WCGC at 200 оС in the air found that their heat treatment is accompanied by two endothermic effects corresponding to two successive stages of dehydration at exposure from the beginning of heat treatment to 30 minutes with the removal of free moisture and from 30 to 90 minutes with the removal of 1.5 water molecules from gypsum and 4 water molecules – from calcium hypochlorite. X-ray phase analysis revealed that the heat-treated samples form calcium sulfate hemihydrate and dehydrated calcium hypochlorite. The presence of these compounds gives a strengthening effect when moistened due to the re-formation of crystallohydpates. In laboratory conditions, options for pelletizing pre-crushed mixtures of heat-treated WCGC and coke using pelletizing and briquetting methods have been tested. The humidity, density, bulk weight and strength of pellets and briquettes for compression and impact were determined immediately after pelletizing, seven-hour exposure and drying at 105 оС. The research results confirm the possibility of obtaining a material suitable for effective utilization of waste from chemical processing of germanium concentrates.